[Q] Strangely isolated WiFi issue - Captivate General

Hi all,
Captivate with Cognition 2.2B9.1.1
Android 2.2
Belkin router (it is at home so I can't get the model number right now)
The simple problem is that my captivate will connect to all of the other wifi networks that I use but it stopped connecting to the one at home. All other phones and computers in the house connect just fine. The interesting thing is that when you watch the connection status on the phone, it connects and then immediately disconnects and starts the handshake over again. I have watched this happen over and over again. Weird.
I first thought it was my router so I modified the settings by using different channels and security methods. No dice. I then reset my router to factory specs and still nothing. I want to blame the router but I am stuck thinking that it might be the phone. Is there a way to purge the WiFi and IP information? I would rather not dump my phone and restart if I can avoid it. Can this be done through a terminal app like other platforms?
Any ideas or similar experiences?
Thanks ahead of time.
999

more info
So I dropped an updated Cognition Rom 2.3.b6 and solved the issue. Last night I cleared my RAM (level 1 and level 2) and when I got home the problem occurred again. Bizarre. Could I be clearing a cache that refuses to refresh? Ideas?

Related

Can't keep wifi connection and other issues

the G tab won't hold a connection for more than 30 minutes. It won't connect at all with my router unless it's within 8 feet. I'm running stock TNT, but had been running VEGAN 5.1.
I also can't seem to get Clockworkmod to work at all now. I cleaned everything I could when I first started having this issue when running Vegan. Tried to reinstall CWM, and now i'm just getting the cardboard box and arrow no matter what I do.
Halp.
Bueller? Anything?
baconrocket said:
Bueller? Anything?
Click to expand...
Click to collapse
Try installing Bekit's CWM v.08 from this page.
http://forum.xda-developers.com/showthread.php?t=865245
Then I suggest reflashing the ROM of your choice with Wipe Data & Cache.
It may be you have a corrupt installation.
VEGAn 5.1 gives me no issues with Wi-Fi connection whether im 5ft away all the way across the house.
actually I've done that. I can't seem to get CWMOD to run. I do everything like I had originally, but now when i do power and + volume, I get the Gtablet screen and not CW.
http://forum.xda-developers.com/showthread.php?t=892090
Follow that and make sure your command file is there and correct. It deletes after the first boot. If you are powering on with power/vol+ and not going into cwm then its not installed
Vegan 5.1 installed. WiFi is stil
scanning.. connectin.. disconnected.
if i'm within feet of the router it will obtain the IP and connect. Then just crap itself later.
have you tried rebooting the router and are you using wep?
I've really done everything. tried several networks, rebooted router(s) wep wpa, everything. wifi has just decided to stop working on my tablet. TNT, Vegan. Doesn't matter.
I'm exchanging it.
yep...I would...sounds like a bad wifi
Unfortunately it's been just over 14 days since I purchased it and Office Depot will not exchange items after 14 days.
Great.
baconrocket said:
I've really done everything. tried several networks, rebooted router(s) wep wpa, everything. wifi has just decided to stop working on my tablet. TNT, Vegan. Doesn't matter.
I'm exchanging it.
Click to expand...
Click to collapse
Have you tried connecting to a different router other than the one that's giving you issues with the gtab? Have you been able to tether the gtab to an android phone that supports it?
Perhaps tried to connect to an open connection other than your own?
I remember having that issue and it wasn't the gtab perse but I forgot I had set the security on my router to only allow devices with the mac addresses that I entered into the security settings of the router. So even though I was able to connect it would disconnect me shortly after obtaining an IP address.
If you're able to connect to another router you would know for a fact that it's not your gtab but the router you're trying to connect with.
I've tried connecting to a number of routers both open and secured. Same issue and it has progressively gotten worse. I simply cannot connect at all now. There were some issues with connectivity since day one but now it is all but unusable.
baconrocket said:
I've tried connecting to a number of routers both open and secured. Same issue and it has progressively gotten worse. I simply cannot connect at all now. There were some issues with connectivity since day one but now it is all but unusable.
Click to expand...
Click to collapse
Oy Vey, I'm not entirely sure wifi hardware that was once working even if only sporadically can go bad but you mention the grace period for return has passed but it may still have warranty available from viewsonic available to you.
Perhaps you should follow proceedures to return the device back to out of the box stock condition and put in for an RMA from viewsonic.
found out I was on my last day of being able to return, unlike I thought. Exchanged it and got a new tab. Everything about this one is better. Screen, camera angle, CONNECTIVITY.
Just a bad unit I guess. Newer build date by over a month.
I've seen a similar issue, but it only seems to relate to routers broadcasting WEP.
At work they still use WEP - shocking I know - but they do...anyways...it no worky there.
but at home I"m WPA/WPA2 and it fires up just fine...

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 problems

hello guys,
i may have a problem with my wifi connection.
i bought two days ago the phone and yesterday i was playing with it in my house. i have some kind of problem when i am connected to my rooter.
when i connected my phone, i started viewing some sites and watching youtube videos.
suddenly i had this problem:
at the browser when i clicked a site, it started load it but never ended, just showing a white page. if i pressed stop and reload then the site was loaded ok.
this happened all the time.
when i returned to youtube the videos started and played for 10-20 seconds and then were freezed because the phone could not get the rest video.
at the same time i had internet access from my rooter as i could navigate at sites from my tablet.
if i close and open my wifi on phone then the connection was ok but after a while (10 mins) this strange behavior started again .
has anyone ever had the same problem;
thanks you
(PS sorry for my english)
What ROM are you using, and did you try to reset the phone and wipe cache/dalvik?
Sent from my HTC One XL using xda app-developers app
the phone is new (2 days old) and its stock
Have you tried simply power-cycling the router? Should be one of the first things you do, anytime you have a WiFi problem, as this will clear it up many times. I think I've seen this help even in cases where other devices work on the WiFi network properly.
yeap, i restarted both router and the phone
i have changed all the settings on the wifi-settings but did not see any progress.
From htc support told me to worj the phone in safe mode, but i have to wait until i return home
besides this problem, i cant connect and the router at my office (i had the same problem with mt s2 after an update, but 1-2 months later sammy rolloed out an update and the problem fixed)
Is security enabled on your WiFi network, and if so, what type (WEP, WPA, WPA2, etc.). You might try switching the encryption type (although WEP is not recommended, as its not very secure). I've seen cases where this has helped various connection problems.
I have had this problem with a lot of phones that friends and family bring by. 90% of the time the problem is a minor setting on the router. Some Android phones don't like AES encryption. If your encryption settings on your router are set to "AES" or "TKIP and AES" try changing it to just TKIP. You should see improvement with your connection.
You may have to change the security settings on other devices that are connected to that router as well to refelect the change.
hey guys,
yesterday evening, when i returned home i checked my router if it was able to change the frequency from 2.4GHz to 5GHz but i could not as at the channel it did not had choises for 5GHz.
i did not change the encryption type.
i restarted the phone, and entered in safe mode. after 10 mins the problem occurred again, i removed chrome, and suddenly the phone started working fine for until 1 hour and so i figured out that the problem was the app chrome, but i left the phone in safe mode and went to bed.
next morning (today) i started watch sites and after 5 minutes the problem occurred again. (i did not turn off the phone from the previous night, still worked in safe mode)
is there any possibility the problem to caused when the phone is in standby? although i have the wifi activation in option always

Nexus 5 Wifi Issue

So I've had my Nexus 5 for roughly around a month and I hadn't experienced any issues others have had with wifi not connecting until now. My N5 will show im connected to my home wifi with full bars, but going into quick settings shows it to be orange. Suggesting there's no data transfer, I cannot use any internet based apps with wifi. I've tried some suggestions, switching my router off then on, rebooting the phone, turning some settings off in the advanced panel in wifi settings. All have failed.
I was just wondering if anyone else has this problem and if anyone has a fix to it.
Dillllz said:
So I've had my Nexus 5 for roughly around a month and I hadn't experienced any issues others have had with wifi not connecting until now. My N5 will show im connected to my home wifi with full bars, but going into quick settings shows it to be orange. Suggesting there's no data transfer, I cannot use any internet based apps with wifi. I've tried some suggestions, switching my router off then on, rebooting the phone, turning some settings off in the advanced panel in wifi settings. All have failed.
I was just wondering if anyone else has this problem and if anyone has a fix to it.
Click to expand...
Click to collapse
There was a thread around here somewhere that suggested turning off your mobile data helped fix this problem, I think it was in the N5 General forums.....here it is:
http://forum.xda-developers.com/showthread.php?t=2550690
Don't know if it'll help or not, just saw your thread and had just looked at the other one, figured I'd toss it out there.
Thanks for the reply, just tried that solution but still no luck.
I have a similar problem except that there are phases of wifi not working.
Sometimes I would have around 20-30 seconds of WiFi not working and there would be no data transfer.
Speeds are still fast when it is working however.
I played a little with only using mobile data and no wifi, and everything worked. (Small sample size however).
Seems like this is a WiFi only issue.
So somehow overnight the wifi has managed to fix itself, will report back if the problem returns.
The issue with the wifi returned unfortunately.
Dillllz said:
The issue with the wifi returned unfortunately.
Click to expand...
Click to collapse
Don't know if you've tried this but change your WiFi frequency band in advanced setting to either "5 GHz only" or "2.4 GHz only," whatever your router uses. Might be worth a try.
Thanks for the help, but I've tried changing some settings in advanced wifi settings but it hasn't worked. Even what you recommended I've tried that before and it didn't work.
wifi issue
Also I have the same issue - Im connected to router by wi-fi, home and work and time by time (5x a day) wifi stops working. Wifi is enabled in settings, but there is no connection. Restart the cellphone helps, but after that, maybe an hour, it appears again.
Issue was in 4.4 and still appers in 4.4.1.
Yet did not found how to solve it.
I have the same issue on my gnex running shiny 4.4, but I also had the same issue on 4.3. Tried the wifi options, nothing worked. Unfortunately, no solution for this device that has to last one more week. The double swipe down and tapping wifi gets the connection back, but it is only a work around.
The N5 connects seamlessly to my home and work wifi. A few days ago, I flashed the hammerhead factory image, TWRP and the 4.4.1 update.
Nexus 5 - wifi not switch automatically from data
pcloadletter1 said:
I have the same issue on my gnex running shiny 4.4, but I also had the same issue on 4.3. Tried the wifi options, nothing worked. Unfortunately, no solution for this device that has to last one more week. The double swipe down and tapping wifi gets the connection back, but it is only a work around.
The N5 connects seamlessly to my home and work wifi. A few days ago, I flashed the hammerhead factory image, TWRP and the 4.4.1 update.
Click to expand...
Click to collapse
Hey,
I have the same problem with 4.4.2.(factory rom, no root or not unlocked). Sometimes the wifi not works and get orange. I must put airplane mode to fix it. Its annoying.
But as well happens to me:
When I go out from office or home (where I have wifi connections saved in phone) the phone automatically switch to data plan from carrier. But when I come back the phone stays with data and there is not automatic switch to wifi. Sometimes it help to put wifi off or always airplane mode on/off for a while.
I do not know if it is normal behave of android but I would like have automatic switch to wifi.
I tried to change wifi details (changing bands, etc.) but not helped.
Please help. Thank you.
Is custom ROM or kernel will fix it??
For some unknown reason, as soon as I updated my router's firmware, the problem disappeared.
Updated Android 6.0 solved the issue
Dillllz said:
So I've had my Nexus 5 for roughly around a month and I hadn't experienced any issues others have had with wifi not connecting until now. My N5 will show im connected to my home wifi with full bars, but going into quick settings shows it to be orange. Suggesting there's no data transfer, I cannot use any internet based apps with wifi. I've tried some suggestions, switching my router off then on, rebooting the phone, turning some settings off in the advanced panel in wifi settings. All have failed.
I was just wondering if anyone else has this problem and if anyone has a fix to it.
Click to expand...
Click to collapse
So I had the unfortunate experience of having my wifi go down while on vacation and for 3 weeks I spent a good chunk of time wiping and reinstalling multiple versions from Cyanogen, Paranoid android and 4.4 - 5.1 to no avail. I just did another factory wipe today and installed the new Android 6.0
The Finger Pointing Game is OVER
Read through 30+ pages of other android users with similar experience and some people send their units back to LG and some even managed getting a new handset. There was never any hardware issues with my unit I just couldn't turn on the WiFi but after the install WiFi works? Guess next time you push a software update to our Phones CHECK YOUR SH*T google and Maybe DON'T Take 3 months to FIX your F*CK Up.
I have a similar issue. Since Lollipop my phone almost never automatically connects to my WiFi anymore. What's wrong?

Galaxy Express 3 (J120A) Not Connecting to WiFi - Cycles Between "Connecting" and SSID Not Appearing

I bought a Galaxy Express 3 (sm-j120a) on Ebay (new condition) to use as a backup phone. I began the setup process and tried connecting to my WiFi. I put in the correct password but it will constantly cycle between showing "Connecting" underneath the SSID, then suddenly the SSID disappears, then suddenly it will reappear and show "Connecting" underneath, etc. It will do this indefinitely and will never connect. If anyone has experienced this issue before and knows how to fix it, I would greatly appreciate some help.
One thing I haven't checked is whether I could update the software of the phone to the last available update. I wanted to hold off on putting in my sim card because I have a nano sim and I think the phone takes a micro sim and I don't have an adapter yet. Is there a way I can download any available updates to my computer, then send the update to the phone via a USB cable?
Thanks!
i ran into the same thing a while back with an old android phone, a samsung j120a. one day its wifi stopped working with the att modem i have, a bgw210. behavior was the same as what you described. every other wifi device in the house worked fine. tried every standard trouble shooting thing you find when you search this, including factory data reset, nothing. got hold of another phone same model... it also failed to connect to wifi on this modem, same thing.
the answer-> i resorted to playing with the wifi settings on modem, and found that the problem was with the wpa version setting- it was set to wpa 2 by default when i found it. i changed it to the setting that accepted both versions 1 and 2, and the phone's wifi now works again.
i assume at some point att updated this modem, and one of the updates was to change default setting on the wpa version, probably because wpa 2 is supposed to be more secure than wpa 1
just replying because i hate searching stuff like this and finding nothing but people asking roughly the same question without getting any answers. hope this helps somebody searching this in future

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