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Maddening wifi problems with Captivate

Ever since I got my Captivate, it has had issues with wifi. It's not my routers, or any configuration in my routers, as it happens with 3 different routers (not to mention that I work in IT, so it's definitely not the routers).
Here's what it does. When you start with a fresh boot, it works perfectly fine. As the day goes on, it gets worse; it starts dropping the connection randomly, and eventually stops working altogether. This wouldn't be so bad of a problem, but the point that it "tries" to start accessing a wifi AP, it drags the phone down in speed, eventually freezing, causing me to ave to reboot the device.
I already tried all options with wifi sleep policy; I've tried 3 different ROMs; I've tried clearing all wifi settings and letting the ROM generate a new .conf file, I've tried different wifi firmwares. Nothing works as it should.
What should I do now? Does anyone have any tips for me? I know it's the OS and not the phone, because the last ROM that worked perfectly was Perception 4.
Thanks for the help.

Easy fix I found.
Open Allshare, it should have come pre-installed.
Connect.
Your Wi-Fi problem should be fixed.
You will have to repeat this step when switching between locations, or when you come back to the troublesome router. I don't know why this works, but it does. It seems to have helped alot of other users in other forums with this problem. Maybe someone should make a sticky of this...seems to be a big problem with 2.2 Foryo.

Similar experiece with both an EVO and Captivate with a Linksys router and DLink wireless AP. Whenever I walked into the house, the other PCs attached to the router would stop working, the phone would not get data although it showed as connected and I had to reboot the router - both wired and wireless clients. The Linksys was a very old firmware and I had bad experieces with flashing a few previous devices. I ditched my Linksys for a DLink 8 port and wireless and have not had the issue with either the EVO, Captivate nor any devices attached to my network.

yamabigdog said:
Easy fix I found.
Open Allshare, it should have come pre-installed.
Connect.
Your Wi-Fi problem should be fixed.
You will have to repeat this step when switching between locations, or when you come back to the troublesome router. I don't know why this works, but it does. It seems to have helped alot of other users in other forums with this problem. Maybe someone should make a sticky of this...seems to be a big problem with 2.2 Foryo.
Click to expand...
Click to collapse
This is news to me. You are correct, I do have Allshare. I'll try it the next time I have the issue.
What if I simply remove Allshare? Will that fix the problem?
bdfx69 said:
Similar experiece with both an EVO and Captivate with a Linksys router and DLink wireless AP. Whenever I walked into the house, the other PCs attached to the router would stop working, the phone would not get data although it showed as connected and I had to reboot the router - both wired and wireless clients. The Linksys was a very old firmware and I had bad experieces with flashing a few previous devices. I ditched my Linksys for a DLink 8 port and wireless and have not had the issue with either the EVO, Captivate nor any devices attached to my network.
Click to expand...
Click to collapse
I have 2 Linksys routers with the latest firmwares, and one D-Link. No matter, it does the same thing with them all.
I should also mentioned that I already tested with changing the router's wireless broadcast channels, signal strengths, firmware updates, the whole 9 yards. The problem is the phone, not the networking equipment.

I used this on 3 Captivates in our house and they are all working great now. Had F&*%%#ed wifi issues before that. They are all ok now. Hope it lasts!
https://market.android.com/details?id=com.brilliapps.wifiandmorefixer&feature=search_result

ajm786 said:
This is news to me. You are correct, I do have Allshare. I'll try it the next time I have the issue.
What if I simply remove Allshare? Will that fix the problem?
Click to expand...
Click to collapse
I'm not sure if that will work. I don't think this is by any means a permanent fix, but a temporary work-around. I think it just kicks the wi-fi into gear again somehow...=-(
Hope it helps someone out though.

I had a friend who was having issues with her phone not even attempting to scan for wireless, seems there is an issue on android phones that the networking cache file or whatever it is gets cluttered and needs to be renamed. (Android recreates it)
The process is rather simple, I walked my friend through the steps over the phone w/o issues.
I had her use oneclick root/unroot to root her phone.
http://forum.xda-developers.com/showthread.php?t=739304
Then Had her go through these steps to rename the file.
http://androidforums.com/samsung-moment/46179-unable-scan-networks.html
The steps are for a samsung moment but still work. Also noted that the steps w/o rooting do not work. After you finish renaming the file you can use the application in the first link to unroot the phone and go back to stock

SlappyMcgee seems to have the best fix

It wont hurt anything and I suggest just renaming the file to .old instead of deleting it. the entire process takes like 8 mins

SlappyMcGee said:
Then Had her go through these steps to rename the file.
http://androidforums.com/samsung-mom...-networks.html
Click to expand...
Click to collapse
Link doesn't work, at least for me.

Update:
The Allshare thing works. The problem is that it's not a feasible workaround, because you have to keep doing that every time you want to restart the wifi after the screen goes to sleep or what not.
I will next try that config file delete. I read up on that last night, but didn't think that was it, because I already did a few ROM installs which didn't seem to clear it up.

Nelimungous said:
I used this on 3 Captivates in our house and they are all working great now. Had F&*%%#ed wifi issues before that. They are all ok now. Hope it lasts!
https://market.android.com/details?id=com.brilliapps.wifiandmorefixer&feature=search_result
Click to expand...
Click to collapse
Little early for me to say this is working for sure. But ill be damned if it didn't, at the very least, temporarily fix it. Instant reconnect. Doesn't hang. Seems like it might be the real deal, for me at least. Ill come complain if it craps out again.
Edit: .... worked for 15 minutes. Aka doesn't work...

What's your kernel?

xdahgary said:
What's your kernel?
Click to expand...
Click to collapse
I tried all different ones. Firebird and Speedmod mainly. When I flash newer versions, I always wait till the battery is 100%, and I clear the Dalvik cache. Nothing ever works.

phlunkie said:
Link doesn't work, at least for me.
Click to expand...
Click to collapse
Sorry about that. I fixed the link in the original post.
http://androidforums.com/samsung-moment/46179-unable-scan-networks.html

i had wifi issues and still do. my girlfried does too with her Aria. The phone really seems to only work on routers who have a DNS set to google. The bar near my house it flys and at home i was getting no wifi so I changed my router DNS to google from comcast and its fine. I agree there is a problem but not one that is going to get fixed by Google

My wifi workaround
I had two captivates which both had problems with my home router. Reseting the router never fixed the issue, but resetting the phone did, at least for a few minutes.
I found that phone has problems using DHCP with routers that assign addresses in the 192.168.1.xxx range. It seems to be a conflict with some other internal IP in the Captivate or something. To get around this problem, I had to change the local address of my router to 192.168.2.1, and change the DHCP range to 192.168.2.xxx The new subnet cleared up the problem immediately for me and it hasn't returned, at least, not on my home router. Unfortunately, this won't work on hotspots or other networks that are stuck in the 192.168.1.xxx range.

timsline said:
I had two captivates which both had problems with my home router. Reseting the router never fixed the issue, but resetting the phone did, at least for a few minutes.
I found that phone has problems using DHCP with routers that assign addresses in the 192.168.1.xxx range. It seems to be a conflict with some other internal IP in the Captivate or something. To get around this problem, I had to change the local address of my router to 192.168.2.1, and change the DHCP range to 192.168.2.xxx The new subnet cleared up the problem immediately for me and it hasn't returned, at least, not on my home router. Unfortunately, this won't work on hotspots or other networks that are stuck in the 192.168.1.xxx range.
Click to expand...
Click to collapse
I ran into this problem on my Router. Netgear wndr3700. For some reason when I turned the wifi on my phone either the router was assigning it the same address as my Tivo or my phone wasnt accepting anything but that address. To resolve I forgot the connection my phone then reflashed the firmware on my router. Then reconfigured the wifi on my phone. After that no more issues.

Well i honestly dont know whats wrong with mine. I've done all the "fixes" in this and other threads but it doesnt work. What is weird is that it connects using All Share and only All Share. However it does connect at other places like my friend's, sister's, granparents and gf's houses. I think I'm gonna go to att and demand a new phone and an upgrade

Just wanted to post an update on this. For the most part, deleting the wifi configuration file in data\wifi seems to have cured the problem. The wifi signal did get stuck on one or two occasions, but I'm bound to believe that the issue was caused elsewhere.

WiFi *profile* keeps getting disabled?

I've noticed that the profile for my home wifi network keeps getting disabled. Usually, I'll leave for a bit, then come back and about half the time it never reconnects. When I go into the wifi list, it's marked as disabled. I enable it and it works fine from that point unless I leave again. It's my understanding a profile will get disabled when it cannot connect to a network for some reason, but clearly it can. My G2 and SGS never have this problem. Is this a setting somewhere? Thanks...

I am having this same issue. I dont know how to fix it

This is more serious than I realized! I just got disconnected randomly even while staying in perfect coverage. Not only does it disconnect, but it DISABLES the connection and won't reconnect again unless I manually tell it to. I rely 100% on WiFi calling while home and now I'm missing all kinds of calls and texts because WiFi is disconnected...
I'm hoping this is just is a software issue that can be resolved pretty quickly, officially or unofficially...

This phone has like 10 legit problems already. Tmobile needs to hurry up with the updates or the refunds will kill them.

It might help if you talk about the router you're using. I have a Netgear N600 and haven't had any Wi-Fi issues either connecting, staying connected, or automatically reconnecting. Bluetooth on the other hand...

BarryH_GEG said:
It might help if you talk about the router you're using. I have a Netgear N600 and haven't had any Wi-Fi issues either connecting, staying connected, or automatically reconnecting. Bluetooth on the other hand...
Click to expand...
Click to collapse
It's a Linksys WRT610N. Very modern and very stable router. There's no reason this phone should have any problem with it. I literally have a G2 and SGS sitting side-by-side with the G2x and only the G2x has this problem. The SGS is Froyo and the G2 is Gingerbread. I also have a slew of other wireless (on both 2.4ghz and 5.8ghz bands) and wired clients connected that all have zero issues. I don't know why it would work on one router and not the next...
Are you using WPA2-AES encryption or something else?

zaventh said:
Are you using WPA2-AES encryption
Click to expand...
Click to collapse
Yes. And you're right, the phone is very temperamental across a number of areas.

Did you set up your wifi to never go to sleep? Cause if you havent - it disconnects every time you turn off the screen.
In order to do that, go to Settings=>Wireless & Networks=>Wi-Fi Settings=> click on the "menu" button on your phone=> Advanced=> Wi-Fi sleep policy=> and choose Never.
I did that, and my wifi calling is flawless ... and I rely on it pretty much all the time that I am at home (thanks for that stupid t-mobile signal)

I have the same issue and the setting I have by default to Never go to sleep... Also, has nothing to do with router as any of my other phones have this issue including Nexus One.

Did by any chance any of you with this issue restore some Titanium Back-ups? Because when I restored mine from a back-up of my 1st G2x (exchanged) I also restored the previous wi-fi settings and after that the wi-fi wouldn't work correctly. I did a factory reset and it fixed the problem.
Edit: If all else fails, then try a factory reset. I know it sucks, but it could fix everything.
Sent from my LG-P999 using XDA App

I'm having issues with this as well. Wifi set to never sleep, I haven't restored any apps. I constantly lose connection. I've tried the factory reset thing etc. and it doesn't help.

I can connect to my wireless g Linksys access point but not my airport extreme ... my Linksys is open my ape is not(I realize I wrote ape LOL)
Sent from my LG-P999 using Tapatalk

WiFi seems to be losing dns services
I have the same WiFi problems and while a factory reset clears the problem
temporarily and changing the WiFi sleep setting to never is an immense help
once it's gone off-line I can't get it to come back.
I have noticed that if it has a cached dns lookup to an ip address that that
ip address is still accessible. So if you can get OTA data live, look up google.
Switch to wifi, google is still accessible and you can do queries but you can't
click through on the links because the dns lookup fails.
I've fiddled with killing myaccount, suggested elsewhere, without success.
Unless there is some robust configuration change that pops up soon I suppose
I'll have to return it...

boylan said:
I have the same WiFi problems and while a factory reset clears the problem
temporarily and changing the WiFi sleep setting to never is an immense help
once it's gone off-line I can't get it to come back.
I have noticed that if it has a cached dns lookup to an ip address that that
ip address is still accessible. So if you can get OTA data live, look up google.
Switch to wifi, google is still accessible and you can do queries but you can't
click through on the links because the dns lookup fails.
I've fiddled with killing myaccount, suggested elsewhere, without success.
Unless there is some robust configuration change that pops up soon I suppose
I'll have to return it...
Click to expand...
Click to collapse
Did you also uninstall market updates and freeze the market updater?
It got mine working again without any problems. Sucks that this has to be done to get wifi to work properly.

I've frozen MyAccount and WiFi calling and it's working at the moment.
Truely I was a little tired and forgot about the market updates until I got
back here.
Insane that one has to do something like this for such a basic feature.
I mean who is going to use the OTA networking when wifi is available?
Let alone the cost issues. I went from 880kbps to 10100kbps going from
OTA to wifi.
This device must have rushed out the door.

Useless at any speed
So I've uninstalled the updates to and FROZEN:
My Account
Market Updater
WiFi Calling
AppPack
and the phone is still trippy. I've discovered also (via the engineering menu)
that the networking ping test fails - "network unreachable". The wifi
data looks good but it doesn't show the current gateway or dns configuration
information.
I'm at a loss for what to try next. Anyone got any suggestions?
Is there something like a netstat android app?

I am having the SAME issue as well as the OP..... =/

wifi recovery
Too soon to say that this is a consistent work-around but I'm
having some short term luck with
rebooting the phone (remove battery) in Airplane mode
enabling wifi
turning airplane mode off
Not sure if the battery pop is necessary. I suspect it's not.
I also suspect that freezing/deinstalling the various updates
is pointless.
Probably the whole work-around is to change the
Wi-Fi sleep policy to never:
settings->wireless & network settings->Wi-Fi settings->advanced
and use the airplane/wifi enable reboot sequence.
If someone has a permanent work-around based on precise setup
sequence and freezing applications I'd like to hear it - I think I've
followed the several posts on this topic and that path is unreliable but
it never hurts to be wrong.

dj75728 said:
Did by any chance any of you with this issue restore some Titanium Back-ups? Because when I restored mine from a back-up of my 1st G2x (exchanged) I also restored the previous wi-fi settings and after that the wi-fi wouldn't work correctly. I did a factory reset and it fixed the problem.
Edit: If all else fails, then try a factory reset. I know it sucks, but it could fix everything.
Sent from my LG-P999 using XDA App
Click to expand...
Click to collapse
Mine does this and I never restored any system data. I only restored apps.

Strange.
I use WiFi calling at work with no problems. It is a Netgear router. I haven't had problems at home with my Linksys router either.

Strange WIFI issue

Hi
My Sensation is having problems with the WIFI in my home. When I visit other people and use their WIFI I dont experience the same issues, which leads me to believe that it is an issue with my router.
The problem is that I have to turn the wireless off and on again on the phone a few times a day, because it suddenly doesnt work. When it happens the phone shows full WIFI bars and tells me that it is connected, but it doesnt work. But after turning it off and on, it always works again.
I have tried changing the channel to 11 in the router but that hasnt helped. Is there a solution to this very annoying issue?

skoins said:
Hi
My Sensation is having problems with the WIFI in my home. When I visit other people and use their WIFI I dont experience the same issues, which leads me to believe that it is an issue with my router.
The problem is that I have to turn the wireless off and on again on the phone a few times a day, because it suddenly doesnt work. When it happens the phone shows full WIFI bars and tells me that it is connected, but it doesnt work. But after turning it off and on, it always works again.
I have tried changing the channel to 11 in the router but that hasnt helped. Is there a solution to this very annoying issue?
Click to expand...
Click to collapse
Nobody? If it is because it has been posted before I would really appriciate a link to the thread as I an unable to find an answer to this issue.
Thanks

skoins said:
Nobody? If it is because it has been posted before I would really appriciate a link to the thread as I an unable to find an answer to this issue.
Thanks
Click to expand...
Click to collapse
Besides obviously getting another router, have you tried removing the wifi connection from your list, reboot and then adding the wifi back on like a new connection? Besides not knowing your current setup (what rom you are on, if any) and when you select menu to bring up the advanced menu, is the 'avoid poor connections selected' or available as an option? Also is there a wi-fi frequency band option? If so make sure you have auto ticked off.

kpjimmy said:
Besides obviously getting another router, have you tried removing the wifi connection from your list, reboot and then adding the wifi back on like a new connection? Besides not knowing your current setup (what rom you are on, if any) and when you select menu to bring up the advanced menu, is the 'avoid poor connections selected' or available as an option? Also is there a wi-fi frequency band option? If so make sure you have auto ticked off.
Click to expand...
Click to collapse
Im on stock 4.03.
I have now tried your suggestions. Removed the wifi connection, rebooted and reconnected. I will let you know how that turned out.
I dont have any of the options in the wifi menu that you mention, however I do have the option of using a static IP, would that maybe help?

I still have that issue when on ICS 4.0.3/4 Sense 4. But not Sense 3.5/6 and Jellybean. I put out a logcat but they told me to use WiFIX but that never did me anything. They also told my my security on my router WPA/WPA2 is not supported well in Sense 4 or something. I'm just patiently waiting for someone to help me with that same problem so I can try ICS stock and Sense 4.

richie390 said:
I still have that issue when on ICS 4.0.3/4 Sense 4. But not Sense 3.5/6 and Jellybean. I put out a logcat but they told me to use WiFIX but that never did me anything. They also told my my security on my router WPA/WPA2 is not supported well in Sense 4 or something. I'm just patiently waiting for someone to help me with that same problem so I can try ICS stock and Sense 4.
Click to expand...
Click to collapse
maybe changing the security on the router would be worth a try... nothing seems to help so far

skoins said:
Im on stock 4.03.
I have now tried your suggestions. Removed the wifi connection, rebooted and reconnected. I will let you know how that turned out.
I dont have any of the options in the wifi menu that you mention, however I do have the option of using a static IP, would that maybe help?
Click to expand...
Click to collapse
Any change? As for the static IP, I wouldn't mess with it unless you know what you are doing in that respect.

kpjimmy said:
Any change? As for the static IP, I wouldn't mess with it unless you know what you are doing in that respect.
Click to expand...
Click to collapse
It still doesnt work...
My new idea is that it could be something to do with the router. According to some threads ive across the phone doesnt like wireless n networks and wpa/wpa2 security. I think my router is setup with those two things. I guess I will try changing that. If that doesnt help maybe setting up a static IP would be worth a try

skoins said:
maybe changing the security on the router would be worth a try... nothing seems to help so far
Click to expand...
Click to collapse
skoins said:
It still doesnt work...
My new idea is that it could be something to do with the router. According to some threads ive across the phone doesnt like wireless n networks and wpa/wpa2 security. I think my router is setup with those two things. I guess I will try changing that. If that doesnt help maybe setting up a static IP would be worth a try
Click to expand...
Click to collapse
I would change my security but I have about 10+ devices connected in the household and once you change it they don't reconnect; you have to re-enter the password and everything. The downside in my household at the moment. But as for the StaticIP. I wouldn't mind doing that to be honest. Let me know how these two options work out for you because I might make a change to my router settings if one of these works out.

I had the same problem after upgrading to ICS. It seems that even if you have set your ip to static it still wont connect to the internet. This is because there is no option to change the subnet mask address from the usual static ip config. Try installing any DNS setting tool to your phone and check the setting on your ip again. Hope this helps.

WiFi problem

I've noticed WiFi problem in my moto g 2015.
My home WiFi is not connecting, it reacts like gone through infinite loop. My home WiFi is having WPA2 protected access.
Every else's WiFi is connecting to my phone.
Please help.

It would help if we had much more details. A link to a video would be perfect. Does this happen with any other Wi-Fi networks?
keyur1131 said:
I've noticed WiFi problem in my moto g 2015.
My home WiFi is not connecting, it reacts like gone through infinite loop. My home WiFi is having WPA2 protected access.
Every else's WiFi is connecting to my phone.
Please help.
Click to expand...
Click to collapse

Thanks for respond.
And yes it happens with some other WiFi networks.
vicks1008 said:
It would help if we had much more details. A link to a video would be perfect. Does this happen with any other Wi-Fi networks?
Click to expand...
Click to collapse

Try factory resetting the device.

keyur1131 said:
Thanks for respond.
And yes it happens with some other WiFi networks.
Click to expand...
Click to collapse
Did you manage to resolve your wifi problem?
I bought the Moto G (2015) 2GB RAM / 16GB ROM for my wife and she's having problems with the home wifi. It often says there is a "connection error" and loops to try to connect again and then fails. Her work wifi seems to function ok.
Having read about similar problems with older moto gs, people recommended (1) turning on and off airplane mode. (2) changing channel number of router.
Both sometimes work and sometimes don't. But it's not really a permanent solution. I'm a bit reluctant to do a factory reset and reinstall everything if it won't resolve the problem. The device came with the latest firmware already installed (5.1.1) and I haven't rooted or unlocked bootloader so should be a pretty clean install.
Anyway, would like to hear that factory reseting could resolve this issue or not before trying.
Thanks for any advice!

Mine does it every now and then. I just unplug my router, wait a minute, plug it back in, and then it connects.

bobbyphoenix said:
Mine does it every now and then. I just unplug my router, wait a minute, plug it back in, and then it connects.
Click to expand...
Click to collapse
Yes. It works for me too. But what happens if you're on a public or work wifi where you can't reset the router? It doesn't really seem like a long term solution.
Is this a standard problem with this phone? Anyone else have a similar problem or preferably a solution?
Cheers

tomaquet said:
Yes. It works for me too. But what happens if you're on a public or work wifi where you can't reset the router? It doesn't really seem like a long term solution.
Is this a standard problem with this phone? Anyone else have a similar problem or preferably a solution?
Cheers
Click to expand...
Click to collapse
Yeah resetting other than home router is not the answer. It's an Android issue as all my phones do it from time to time. I haven't been able to figure it out. The other "fix" if you can't reset the router is try going into the Wi-Fi settings, and forget the network/name, and then add it back as new. It takes longer, but it could work for you. That's how I get around it when connecting to work when it won't auto connect.

Hi, I had also faced the same problem with a open wifi network which is free for 15 mins ..
Other than that one ..i had every router connected to my phone..
I was thinking the problem is not in your phone.. It's in router which might be old ��
Because old routers will have 802 a or something which are in compatible to some phones..
Or the router is not allowing your phone to get connected.. As your phone is latest and it has advanced protocols inscribed in it..
Do one thing.. Shed some light on this now :
1) router model (if known to you)
2) phone models which got connected to that router and it's operating system version (like 5.1.1)
And there is also one more point.. I found our phone might find problems connecting to 5ghz band router ..while it works fine for smaller routers like 2.4ghz
We can decide when you dig some info about the questions I mentioned...
We will get answers

Just turn off wifi and then turn it on it will fix the problem

banerjeeayan1996 said:
Just turn off wifi and then turn it on it will fix the problem
Click to expand...
Click to collapse
You would think it would be that simple, but it's not. It just sits there "Connecting", then nothing, then "Connecting". Keeps cycling like that.

nandakis4 said:
Hi, I had also faced the same problem with a open wifi network which is free for 15 mins ..
Do one thing.. Shed some light on this now :
1) router model (if known to you)
2) phone models which got connected to that router and it's operating system version (like 5.1.1)
And there is also one more point.. I found our phone might find problems connecting to 5ghz band router ..while it works fine for smaller routers like 2.4ghz
We can decide when you dig some info about the questions I mentioned...
We will get answers
Click to expand...
Click to collapse
My router is a netgear CG3100Dv3 (using WPA2-PSK [AES] encryption) and uses 2.4 GHz. I don't think it's the router's fault though because I've had many friends connect with a variety of phones and none of them have had the problem before. I currently have a Oneplus One (android 5.0.2) and have used a Nexus 4 and Samsung Galaxy S (1) on this router without problems. Maybe it's a problem with android 5.1.1 as I guess not many of my friends have it yet. I've written to motorola support but they still havent got back to me.
bobbyphoenix said:
It's an Android issue as all my phones do it from time to time. I haven't been able to figure it out. The other "fix" if you can't reset the router is try going into the Wi-Fi settings, and forget the network/name, and then add it back as new. It takes longer, but it could work for you. That's how I get around it when connecting to work when it won't auto connect.
Click to expand...
Click to collapse
Strange. I've never had a problem before with wifi. Maybe I've been lucky until now. Yep - have tried forgetting and reconnecting to wifi signal. Again, a temporary solution that will quickly become irritating when there shouldn't really be a problem for such a simple operation.
banerjeeayan1996 said:
Just turn off wifi and then turn it on it will fix the problem
Click to expand...
Click to collapse
It's a temporary solution but a pain in the arse if you have to reset the router every few hours. And as I said before, what happens when you can't connect to a router which you can't reset? (i.e. public, work)

Change the router's channel, then refresh the wifi in the phone.
Sent from my SM-T530NU using Tapatalk

Firstly i agree that our Moto G has some kind of issue with some routers.. but there will be solutions for them from the ROUTERS POINT OF SIDE to make it work
i have read about your router .. Things i suggest (if you have already done them then let me know )
1) your router has option to change MODE to get speeds more than 150mbps.. try changing that 802.11 MODE , restart your Phone and Router and also keep CHANNEL to AUTO , try changing the security WPA to others also..
2) your Wifi of your phone will have a MAC address , copy that and paste in your Router to allow this device..
i am still finding info on your problem..
the reason why i think your Router can solve the problem is : i had once read about 802.11 b/g/n/ac types.. i am getting a doubt that they are the ones causing the problem.. if you are aware of it
have a look at this bro once : http://www.smartmobilephonesolutions.com/content/cant-connect-to-wifi-on-android-smartphone
in this he said that Wifi fix apps can solve the easy problems..:highfive: , hope you find solution

nandakis4 said:
Firstly i agree that our Moto G has some kind of issue with some routers.
Click to expand...
Click to collapse
Hmm. That doesn't sound promising. Will they sort it out with the next firmware update? Are motorola even aware there is this problem?
nandakis4 said:
1) your router has option to change MODE to get speeds more than 150mbps.. try changing that 802.11 MODE , restart your Phone and Router and also keep CHANNEL to AUTO , try changing the security WPA to others also..
2) your Wifi of your phone will have a MAC address , copy that and paste in your Router to allow this device.
Click to expand...
Click to collapse
Ok. Will change channel to auto mode. It was already on "up to 300 Mbps". Will also put MAC addresss in the router.
However this still relies on having access to the router. What happens when you don't have access. If this is going to happen on many routers then I prefer to return the phone and buy one which never has this problem.
nandakis4 said:
have a look at this bro once : http://www.smartmobilephonesolutions.com/content/cant-connect-to-wifi-on-android-smartphone
in this he said that Wifi fix apps can solve the easy problems..:highfive: , hope you find solution
Click to expand...
Click to collapse
I'll give a wifi fix app a go to. But they just seem to automatically delete known wifi SSIDs and passwords.
Another option would be to root and install new ROM and radio, but would prefer not to.
It seems like a lot of Nexus 5 users on 5.1.1 are having wifi problems too:
https://productforums.google.com/forum/#!topic/nexus/4zdMLo2Pn9Y;context-place=forum/nexus
https://productforums.google.com/forum/#!topic/nexus/yx5kGasv2lE;context-place=topicsearchin/nexus/category$3Aconnecting-to-networks-and-devices
Anyway, thanks for you advice!

Just a quick update if there is anyone else reading this thread with a similar problem.
I changed the channel mode to auto and that has seemed to fix the problem. The moto g seems to connect without problems now. I didn't enter the MAC address nor used a "wifi fix" app so far.
Fingers crossed...

I have the same problem. Wifi just stops working and had a ! Symbol beside the wifi icon. I have probably had a 100 phones and devices connected to this router without a problem. I have changed a bunch of settings the router and it didn't help.
Disabling wifi off then on works, but that is no solution. I will try anther Rom or kernel. I am on resurrection 5.1.1

tomaquet said:
Just a quick update if there is anyone else reading this thread with a similar problem.
I changed the channel mode to auto and that has seemed to fix the problem. The moto g seems to connect without problems now. I didn't enter the MAC address nor used a "wifi fix" app so far.
Fingers crossed...
Click to expand...
Click to collapse
Finally you made it :highfive: thanks for this reply, i have been waiting for this answer ..

choder said:
I have the same problem. Wifi just stops working and had a ! Symbol beside the wifi icon. I have probably had a 100 phones and devices connected to this router without a problem. I have changed a bunch of settings the router and it didn't help.
Disabling wifi off then on works, but that is no solution. I will try anther Rom or kernel. I am on resurrection 5.1.1
Click to expand...
Click to collapse
My problem was slightly different in that the phone wouldn't even connect to the wifi signal. It would cycle continuously between "connecting" and "authentication error".
Does it work with other routers?
nandakis4 said:
Finally you made it thanks for this reply, i have been waiting for this answer ..
Click to expand...
Click to collapse
Thanks for your help! I'm still a little wary that the phone will have problems in the future on other routers, but it's a good enough fix for now. Hopefully a later firmware update will sort it out.

Unfortunately, my wife took the moto g on a business trip last week and could not connect to any wifi signals (her colleagues did not have a problem).
Not sure what to do now. I'm in contact with motorola support but they don't have any suggestions yet (apart from blaming the router - which has never had a problem with any other devices!)
---------- Post added at 02:01 PM ---------- Previous post was at 01:05 PM ----------
tomaquet said:
Unfortunately, my wife took the moto g on a business trip last week and could not connect to any wifi signals (her colleagues did not have a problem).
Not sure what to do now. I'm in contact with motorola support but they don't have any suggestions yet (apart from blaming the router - which has never had a problem with any other devices!)
Click to expand...
Click to collapse
Well I just emailed Amazon and they're sending a replacement. Hopefully this will solve the problem

WiFi keeps disconnecting after the nougat update.

So far I love the nougat update. The main problem I have now is the WiFi disconnects when I turn off the screen. Really annoying because I listen to music a lot at work and ever since then the music will stop randomly so the wifi will have to connect again. Rebooting does nothing and I don't want to hard reset the phone to see if it will fix it. I have already gone through 3 different note 5 because of stupid problems. it seems like a battery saving thing. the old update power saving feature used to do the same thing and wouldn't let background apps use data when the phone was off and now its doing it on all the power settings. Not sure what to do.

first off, make sure your wifi is set to stay on always during sleep (at least just to test to see if that fixes things). That said, I've experienced this too (even with that setting set to "always") and hopefully I've fixed it but need more time (and others seeing this issue) to verify the fix and actually I really don't have a fix, just a work around.
I think what's going on is that wifi is being subjected to the battery optimization/power saving stuff and is disabled or whenever when the screen goes off. I've turned off all "power saving stuff" and now wifi seems to stay on.
---------- Post added at 09:56 AM ---------- Previous post was at 09:27 AM ----------
This seems to be a pretty broad issue with Nougat updates, on many device models. Some have suggested disabling the advanced wifi setting "smart network". I just did that and will see how it goes.

Yep same problem here and I have tired nearly everything but smash the phone so far.

I gave up trying to fix it. Nothing is working and I'm not wiping the system just for that. Mostly only happens at work on that wifi. Home doesn't really disconnect much.

painball64 said:
I gave up trying to fix it. Nothing is working and I'm not wiping the system just for that. Mostly only happens at work on that wifi. Home doesn't really disconnect much.
Click to expand...
Click to collapse
I'm thinking it happens for me when the phone tries to swap between to wifi access points of the same ssid... like at hotels and work.

Might be right but I know it has something to do with it going to sleep when my screen shuts off. I have the always on turned on but it only happens when my screen is off and I turn it back on

painball64 said:
I gave up trying to fix it. Nothing is working and I'm not wiping the system just for that. Mostly only happens at work on that wifi. Home doesn't really disconnect much.
Click to expand...
Click to collapse
I tried a factory reset to fix the Wi-Fi issue. It did nothing except waste my time. I've been with the Note series since the 2 and I'm done with them. I seem to also have some issue with the damn things. I've never been on IOS but I'm ready to take it for a spin.
Sent from my SM-N920V using XDA-Developers Legacy app

skunkle88 said:
I tried a factory reset to fix the Wi-Fi issue. It did nothing except waste my time. I've been with the Note series since the 2 and I'm done with them. I seem to also have some issue with the damn things. I've never been on IOS but I'm ready to take it for a spin.
Sent from my SM-N920V using XDA-Developers Legacy app
Click to expand...
Click to collapse
It's not your phone that's causing the problem it's Nougat itself and that and other reasons are exactly why I downgraded back to MM 6.0.1.. I have the firmware if you want to try that.

MrMike2182 said:
It's not your phone that's causing the problem it's Nougat itself and that and other reasons are exactly why I downgraded back to MM 6.0.1.. I have the firmware if you want to try that.
Click to expand...
Click to collapse
Thank you for the offer but I'm just gonna ride this out till September. Also thank you for being so helpful in the forums! I see you helping others all the time.
Sent from my SM-N920V using XDA-Developers Legacy app

MrMike2182 said:
It's not your phone that's causing the problem it's Nougat itself and that and other reasons are exactly why I downgraded back to MM 6.0.1.. I have the firmware if you want to try that.
Click to expand...
Click to collapse
Hello Mr Mike,
I'm to the point I can no longer stand this issue. I'm constantly getting an exclamation mark beside my wifi. The thing that boggles me the most is I don't see very many complaints when researching this issue. Am I missing something simple? I also know it's not my router. My wife has an S7 edge, my son uses my old Note 3, and my daughter has an eclipse tablet. None of those devices have this issue. I also know that nothing associated with wifi is set up to sleep. I'm at a loss!
I would hate to roll back to marshmallow but I'm seriously considering it! I'm constantly streaming music and this issue has made this a nightmare.
Any help to fix this would be greatly appreciated!!
Sent from my SM-N920V using XDA-Developers Legacy app

skunkle88 said:
Hello Mr Mike,
I'm to the point I can no longer stand this issue. I'm constantly getting an exclamation mark beside my wifi. The thing that boggles me the most is I don't see very many complaints when researching this issue. Am I missing something simple? I also know it's not my router. My wife has an S7 edge, my son uses my old Note 3, and my daughter has an eclipse tablet. None of those devices have this issue. I also know that nothing associated with wifi is set up to sleep. I'm at a loss!
I would hate to roll back to marshmallow but I'm seriously considering it! I'm constantly streaming music and this issue has made this a nightmare.
Any help to fix this would be greatly appreciated!!
Sent from my SM-N920V using XDA-Developers Legacy app
Click to expand...
Click to collapse
Do you have "smart network switch ebabled"? If you have no need for your mobile data to be enabled then disable it for as long as you're going to be near the Wi-Fi network so you can still receive texts and other stuff.. Just as a sort of test to see if your mobile data is fighting with your Wi-Fi data.. Also how many devices are connected to your Wi-Fi at the time the drop usually happens? For instance if I'm using most of the Wi-Fi data, like say your speeds capped at 10MB and your wife is downloading using almost all of the speed and then other devices will not be able to use that data and your phones going to think the Wi-Fi network is being slow and rather drop it altogether.

MrMike2182 said:
Do you have "smart network switch ebabled"? If you have no need for your mobile data to be enabled then disable it for as long as you're going to be near the Wi-Fi network so you can still receive texts and other stuff.. Just as a sort of test to see if your mobile data is fighting with your Wi-Fi data.. Also how many devices are connected to your Wi-Fi at the time the drop usually happens? For instance if I'm using most of the Wi-Fi data, like say your speeds capped at 10MB and your wife is downloading using almost all of the speed and then other devices will not be able to use that data and your phones going to think the Wi-Fi network is being slow and rather drop it altogether.
Click to expand...
Click to collapse
I've tried enabling and disabling smart switch and I have the same issue. I just tried forgetting the network and setting wi-fi back up fresh (after a factory reset, logging into my Samsung account sets up my Wi-Fi from previously saved settings). So far I haven't I disconnected.
The wife and kids do use some data, but not enough to warrant the issues I've been having. Once again thanks for a quick response. I will report if resetting the connection works.
Sent from my SM-N920V using XDA-Developers Legacy app

skunkle88 said:
I've tried enabling and disabling smart switch and I have the same issue. I just tried forgetting the network and setting wi-fi back up fresh (after a factory reset, logging into my Samsung account sets up my Wi-Fi from previously saved settings). So far I haven't I disconnected.
The wife and kids do use some data, but not enough to warrant the issues I've been having. Once again thanks for a quick response. I will report if resetting the connection works.
Sent from my SM-N920V using XDA-Developers Legacy app
Click to expand...
Click to collapse
Enable developer options and under Network make sure nothing is on.. I don't know much about your type of setup but I have internet through the cable company but I use my own modem and Wi-Fi network built into it and manually control what devices can use, like what amount of speed, the IP address it can use and so on so I don't really have any issues like that.. I even have it setup so it's a white list type setup so nothing can be connected unless I personally add that devices MAC address.. Neighbors always trying to get free internet!!

Hey just found something. There's a way to check to see what's making the wifi disconnect. For me it is my gear s2. Goto wifi settings and under advanced, scroll to bottom and control history is there. I clicked on it and it said gear s plugin turned my wifi off. So I went and disabled the wifi setting on my watch and made sure to turn sync wifi profiles off also. It seemed to help at home but at work it's still happening but less often. I don't think this is the culprit for most but I have seen an improvement at least for me, it seems.

The only solution I've found is to stop buying Samsung. I went 3 months without sensors working and now my wifi is garbage. So long Samsung!
Sent from my SM-N920V using XDA-Developers Legacy app

MrMike2182 said:
Enable developer options and under Network make sure nothing is on.. I don't know much about your type of setup but I have internet through the cable company but I use my own modem and Wi-Fi network built into it and manually control what devices can use, like what amount of speed, the IP address it can use and so on so I don't really have any issues like that.. I even have it setup so it's a white list type setup so nothing can be connected unless I personally add that devices MAC address.. Neighbors always trying to get free internet!!
Click to expand...
Click to collapse
So I think I've narrowed the issue down. Yesterday I had a pool party and used a Brookstone speaker I have that plugs into the 3.5mm jack (I usually connect to several Bluetooth speakers I use). I did not have one single issue. Is it conceivable that using Bluetooth is causing my Wi-Fi issues? If so, any ideas on a fix?
Sent from my SM-N920V using XDA-Developers Legacy app

skunkle88 said:
So I think I've narrowed the issue down. Yesterday I had a pool party and used a Brookstone speaker I have that plugs into the 3.5mm jack (I usually connect to several Bluetooth speakers I use). I did not have one single issue. Is it conceivable that using Bluetooth is causing my Wi-Fi issues? If so, any ideas on a fix?
Sent from my SM-N920V using XDA-Developers Legacy app
Click to expand...
Click to collapse
It could yes since a lot of them use 2.4GHZ like Wi-Fi does but it's usually unlikely that Bluetooth would cause your Wi-Fi to get messed up because Bluetooth uses AFH which basically identifies bad channels (i.e. those that are already in use) Bluetooth technology nowadays uses what’s called spread-spectrum frequency hopping. That is, they rotate between 70 randomly chosen frequencies within their range, changing 1,600 times a second. That makes it unlikely that two devices will share the same frequency. But if you have your Wi-Fi unit in a spot where it has to pass between a bunch of walls before it gets to you that could also cause a problem since Wi-Fi signals don't like traveling through walls and other objects.

MrMike2182 said:
It could yes since a lot of them use 2.4GHZ like Wi-Fi does but it's usually unlikely that Bluetooth would cause your Wi-Fi to get messed up because Bluetooth uses AFH which basically identifies bad channels (i.e. those that are already in use) Bluetooth technology nowadays uses what’s called spread-spectrum frequency hopping. That is, they rotate between 70 randomly chosen frequencies within their range, changing 1,600 times a second. That makes it unlikely that two devices will share the same frequency. But if you have your Wi-Fi unit in a spot where it has to pass between a bunch of walls before it gets to you that could also cause a problem since Wi-Fi signals don't like traveling through walls and other objects.
Click to expand...
Click to collapse
Only 1600 times a second lol. Thanks, I'm going to try setting up a repeater to widen my signal.
Sent from my SM-N920V using XDA-Developers Legacy app

I'm pretty sure it's the new "app power monitor" battery saver that comes with Nougat. You can disable it by going to Battery> Advanced Settings> App power monitor > OFF. I recently tried it and it worked instantly and consistently.
It looked like a good idea... basically, it was an official Android version of "Greenify", only it repeatedly turns off wifi. What a joke. I turned that off, and now my wifi is stable, instead of turning off every 5 seconds.
Where do we go from here? I still want the battery savings... I guess I'll go back to Greenify and Package Disabler Pro...

I'll try that out thanks