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Captivate WiFi issue?

My captivate has a problem. It'll connect to WiFi no problem. Unfortunatly, after a while (could be anywhere from long 30 seconds to a few minutes) the WiFi stops sending data. I have to disable/reenable wifi to get it to work again. It still says connected to network, it just won't receive data.
Anyone know of this happening, have a fix, or maybe what I should look for that might be causing this issue?
I disabled recently installed running apps, no help.
I did try a speedfix last night, and it was unsuccessful, and I uninstalled it. Didn't test enough after that to know for sure if it was the issue, but I don't think so.
It was like, I was going through google reader, started a youtube vid, paused it, restarted it, and it wasn't loading. Just wouldn't load. That's when I think the problem started, and I haven't installed anything since then, that i haven't disabled/uninstalled.

Have you tried flashing the stock OS. Maybe this will help. My wifi has been solid so far but i will see if i get a problem like yours. Try reflashing. If it doesn't work post back.
Sent from my SAMSUNG-SGH-I897 using XDA App

I have the exact same issue on enterprise class cisco wifi APs. The only difference is the symptom is immediate, and not after an interval of time.
Sent from my SAMSUNG-SGH-I897 using XDA App

abezapata said:
Have you tried flashing the stock OS. Maybe this will help. My wifi has been solid so far but i will see if i get a problem like yours. Try reflashing. If it doesn't work post back.
Sent from my SAMSUNG-SGH-I897 using XDA App
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I'm thinking of this, but I don't know...
I have my music on my computer, I have my .apk's in a folder and my market synced with appbrain. Anything else I need to do? Will appbrain reset, and make me go find and reinstall everything?
What about the apps that I paid for, what happens to them?
Would be my first flash, and I'm thinking about flashing one of those I9000 roms, but that would be a last ditch effort. I really hope to avoid this.
jhannaman82 said:
I have the exact same issue on enterprise class cisco wifi APs. The only difference is the symptom is immediate, and not after an interval of time.
Sent from my SAMSUNG-SGH-I897 using XDA App
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It's an AT&T U-verse router, and only started a few hours ago, as near as I can tell.

I experience the same phenomenon of dropped wifi, and it occurs at any AP, but I have an interesting twist.
One time out of twenty when I start wifi, the 3g icon doesn't go away, but stays up on the status line with my wifi icon. On those rare occasions, my wifi stays solid for days. Unfortunately, it's random and rare.

same issue
My Wifi stops sending data and the 3G still shows. Sometimes restarting the router helps and sometimes nothing helps.

For anyone that might find this later, turns out (after two rom flashes) it was the router. I found this out when connecting my laptop to it. Surprised the captivate didn't admit it lost connection though.

I wish that were the case for me. My Captivate stays connected, but stops receiving at many different APs--Home, Starbucks, airport. I need a solution or a Scotch.
Peter

I had this exact problem, I tried a factory reset and it was still broken. I exchanged my phone and now it works perfectly holding a signal (except for enterprise 802.1x ap's which are known to be broken). (Also if you run dd-wrt check your logs for "deauthenticated due to local deauth", there is a problem with the wpa/wpa2 modules in either android or dd-wrt that they are not compatible with each other).

I actually found this searching for a solution to my own issue with WiFi. I actually fixed it while I was reading this. Unfortunately I have AT&T DSL with 2wire Modem. I went into the setting and setup MAC filtering and assigned it it's own IP. It has worked flawlessly for the past hour. I know this probably will not help when at other locations but at least at home I have a good connection.

VooDooVonz said:
I actually found this searching for a solution to my own issue with WiFi. I actually fixed it while I was reading this. Unfortunately I have AT&T DSL with 2wire Modem. I went into the setting and setup MAC filtering and assigned it it's own IP. It has worked flawlessly for the past hour. I know this probably will not help when at other locations but at least at home I have a good connection.
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Click to collapse
Same router type as mine that lost it originally. Interesting, wonder if there is a connection? Or random coincidence.

I'm having a wifi issue as well, but not to the extent others have.
I connect fine, but it appears as though my data download speed is capped at <2mbps for both wifi and 3g?
My wife's iPhone is getting download speeds of over 10mbps on the same wifi network and >3mbps over 3g.
Is it worth flashing back to stock? or is this a known issue?
I'm running stock JH3 with SRE 1.2.1a with lagfix

I have this same issue and it's really random. Running JH2, sometimes it works on wifi, sometimes it doesn't. Sometimes disabling\re-enabling wifi fixes it, but rebooting the phone always fixes it. Really frustrating...

Wifi problem just reared its ugly head after 48 hours with official Froyo

I may have bragged too soon on good ol' official Froyo. I had a smooth install and the only problem I've noticed is the messed up Quick Office deal like most others. Today I just had another problem start.
I've been using my secured home wifi network fine, but for some reason the Captivate will no longer connect to it. I've tried doing a battery pull, turning the phone off and back on, and even completely removing the home network from the list and then putting it back in. I'm sure the password is correct. It just sits there, saying "Obtaining IP address". It retries several attempts, and eventually gives up and lists my home network in the list as "Disabled"
This is significant suckage!

Sent from my SAMSUNG-SGH-I897 using XDA App
I had similar problem try unplugging router and plugging back in

Bless your heart! That did it! I just read on the AT&T forums that someone else had the exact same problem and he did a factory reset of his phone which fixed it. I was hoping I wouldn't have to go there

I found an easy solution to the problem. Open Allshare, then you should be good to go.

After opening Allshare, hit connect.

Yes sometimes power cycling the router is all that is needed. I notice this with laptop sometimes too.

kb0npw said:
Bless your heart! That did it! I just read on the AT&T forums that someone else had the exact same problem and he did a factory reset of his phone which fixed it. I was hoping I wouldn't have to go there
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Click to collapse
Yeah that was me...
I tried everything else before the factory reset, but the reset fixed it, now I've got wi-fi with no problems

If you do a factory reset, I realize you have to reinstall all your apps, but what about the ones I paid for? Will I have to purchase those again? I'm thinking of doing one just because I think it will smooth things out and get rid of a couple of weird quirks like the Quick Office icon problem.

kb0npw said:
If you do a factory reset, I realize you have to reinstall all your apps, but what about the ones I paid for? Will I have to purchase those again? I'm thinking of doing one just because I think it will smooth things out and get rid of a couple of weird quirks like the Quick Office icon problem.
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Click to collapse
anything you purchase with your google account is tied to your google account. you dont have to re-buy those...for any phone that you log into your google account.

Has anyone tried my fix? Sure beats having tofactory reset...I'm just sayin.
Sent from my SAMSUNG-SGH-I897 using XDA App

yamabigdog said:
Has anyone tried my fix? Sure beats having tofactory reset...I'm just sayin.
Sent from my SAMSUNG-SGH-I897 using XDA App
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It works, but you have to do it every time, so it's more of a workaround than a fix.

I had an issue with connecting to one of my work wifi routers (would just sit there saying 'obtaining IP address' but never would connect) and could not fix it until I tried using "FXR WiFi Fix and rescue" app from the market. Free app, will erase ALL of your saved WiFi data so make sure you have your passwords for encrypted networks, but this fixed it with one click and a reboot. Seems to connect faster to the networks now as well. I had a similar problem after the previous update that went out OTA and had to reset the phone for that one.

I thought about trying this app, as my wifi issue returned today. I thought I had gotten rid of it by doing the factory reset, but alas it's back. I'm really contemplating a custom ROM more and more every day. I just don't know which one to go with that will provide everything I need. This app sure asks for a lot of permissions, so I'm sort of leary about istalling it.

Welp, I bit the bullet and tried the FXR app. No dice for me. I'm waiting for the wife to get done surfing so I can try a router power cycle. If that doesn't work, I'm looking at my second factory reset in less than a week. Froyo, you suck! I never had wifi issues until I upgraded to 2.2. What I can't understand is, why some of my issues are better, yet some are worse. Is it that difficult for these idiots to figure it out?

Just going to throw something out there, that I noticed yesterday. I'm on a custom ROM, but I noticed some pretty flaky results to my wifi, but only when I was using the modified TouchWiz launcher. The wifi had trouble connecting, and wouldn't sleep. The notification dropdown widget wouldn't control it. Then I switched to Go Launcher EX, and the behavior stopped.
Check another launcher, and see if that makes a difference. Sure, it's a longshot, but I'll be interested to see if the stock TW has the same issue as the modded version.

I was having the same wifi problem after updating firmware to official 2.2 kb1. I used fxr and now wifi connection works great.

byteme2008 said:
I had an issue with connecting to one of my work wifi routers (would just sit there saying 'obtaining IP address' but never would connect) and could not fix it until I tried using "FXR WiFi Fix and rescue" app from the market. Free app, will erase ALL of your saved WiFi data so make sure you have your passwords for encrypted networks, but this fixed it with one click and a reboot. Seems to connect faster to the networks now as well. I had a similar problem after the previous update that went out OTA and had to reset the phone for that one.
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Seems to have worked great for me. Thank you for the app find!

Hello! I had the same problem wifi and use the "FXR WiFi fix and rescue" program stopped deleting profiles anyone have a solution?

wifi connects but doesn't work

I have a stock Skyrocket (4.0.3-IML74K.CLE5) I am using as a media player. I keep it in airplane mode all the time with the Wifi on connected to my router. Yesterday the Play store started telling me there was no connection even though I was connected to my router. I went to the web and found I could connect to pages, but constantly get security warnings. If I click continue I can go on to see the page. Netflix tells me there is a problem connecting to Netflix. Voice search works fine. Google Voice tells me there was a network error. Facebook says it can't find a secure connection. Gmail says no connection. Zedge works fine.
I have tried four different wifi Hotspots both secured and insecure. I have tried telling it to forget the connections and reconnecting. I have restarted many times, removed the battery, and tried all the frequency bands.
The wifi icon in the notification bar shows a strong connection. And the little arrows light up orange and green to show activity.
I am guessing there is something wonky going on with establishing a secure internet connection, bit I have no idea how to fix it. Any advice is appreciated.

Q&A please
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2

How long have you been using the SR? How long have you been having this problem?
Sent from my non-rooted GS2 SR

sly-tendencies said:
How long have you been using the SR? How long have you been having this problem?
Sent from my non-rooted GS2 SR
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Sorry about posting in the wrong spot.
I have been using it like this for three weeks. The problem started two days ago.

Update: it works again. I don't know what I did to fix it, though. I went through every setting, and did turn off screen lock and unknown sources, bit I doubt that did it.

i figured it out, i had the same problem, the date and time were askew. updated them and it worked just fine ^__^

P6200 WiFi Issue

Hey guys. This is my first thread here. So, I hope you can help me.
When I upgraded my GT+ to ICS then now to JB, I already had problems with the WiFi. I thought I would find the problem in the forums, but mine I think is different. There are two arrows in the WiFi indicator, the orange and the green ones. When these two arrows are both lighted up, it means that it is transferring data to the Tab or whatsoever so that I could connect to the Internet. Well, this is based on my understanding, hope you could still help me about this.
So, the problem is, whenever I open the internet and enter an URL, the green arrow stops blinking leaving the orange ones lighted up until both of them are already not blinking and then the browser says, "Webpage not available" (like the attachment below). It happens all the time and whenever I update my Apps in the Google Play, after, example: 23% of downloading the app, it stops and the same scenario happens again. What I do is, I will turn off the WiFi toggle and turn it on again and after, maybe 30 minutes, it happens again.
What do you think guys is the problem? Is it the router or modem's problem too? Or it is a software issue? Thank You guys! ))

Pictures of the Issue
cedric14 said:
Hey guys. This is my first thread here. So, I hope you can help me.
When I upgraded my GT+ to ICS then now to JB, I already had problems with the WiFi. I thought I would find the problem in the forums, but mine I think is different. There are two arrows in the WiFi indicator, the orange and the green ones. When these two arrows are both lighted up, it means that it is transferring data to the Tab or whatsoever so that I could connect to the Internet. Well, this is based on my understanding, hope you could still help me about this.
So, the problem is, whenever I open the internet and enter an URL, the green arrow stops blinking leaving the orange ones lighted up until both of them are already not blinking and then the browser says, "Webpage not available" (like the attachment below). It happens all the time and whenever I update my Apps in the Google Play, after, example: 23% of downloading the app, it stops and the same scenario happens again. What I do is, I will turn off the WiFi toggle and turn it on again and after, maybe 30 minutes, it happens again.
What do you think guys is the problem? Is it the router or modem's problem too? Or it is a software issue? Thank You guys! ))
Click to expand...
Click to collapse
By the way, these are the pictures. Thanks!

Dont have problem with wifi.. maybe your internet connection.. have you tried it with other devices?
Sent from my GT-P6200 using XDA Premium HD app

So do i..dont have any problem..
Sent from my GT-P6200 using xda premium

Yes. I have tried it on my sister's S3 Mini. I never experienced that scenario when my GT+ was still Honeycomb. It just happened when I updated it to ICS.
These are also some happenings:
- When I will refresh the Accuweather widget, it will happen again. Both of the arrows will stop blinking.
- When I am updating 15 Apps (for example), again, Both of the arrows will stop blinking then it will stop downloading.
- When I am using Google Now then I said something, it will just show "Recognizing" then it sill show "No connection."
- When I am surfing the web and then I searched something, again the arrows will stop blinking, then the browser says, "Webpage is not available"
- When I am uploading photos to Facebook, same scenario again and then it will show, "No connection"
The WiFi is not disconnecting actually. It stays connected but it stops giving data. I'm suffering from this problem since ICS. I don't know what's really the source of this problem. That's why I'm seeking for help here in XDA. Thank youuuu.

Most likely your router is dlink? Change the router, use a tplink one
Sent from my GT-P6800 using xda app-developers app

long6688 said:
Most likely your router is dlink? Change the router, use a tplink one
Sent from my GT-P6800 using xda app-developers app
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Okay okay. I'll try. Thanks!
My router actually is Tenda and I think it's already old. So, I'll try other routers. )

Make sure you have the correct wifi frequency band set on your tab for your region/or router. I'm not sure if the stock Samsung roms let you configure it. In aosp builds it's in wifi and advanced menu.

kaijura said:
Make sure you have the correct wifi frequency band set on your tab for your region/or router. I'm not sure if the stock Samsung roms let you configure it. In aosp builds it's in wifi and advanced menu.
Click to expand...
Click to collapse
In the Advanced menu, it only shows the IP and MAC Address. How can I know the correct frequency band? I posted an attachment for the picture of the Advanced Settings. )

It seems the problem come from your modem.
I had similar problem like this. My wifi router connect to modem and sometimes this modem does not allocate IP for router.
This problem is most likely related to IP configuration issues. Let try to use some apps to list down all configurations and check

I only experience this every after flashing roms coz my apn settings always gets edited, what I did before if i dont want problems with wifi every after flashing roms using odin was I copied my apn settinngs and edit the wrong apn settings after flashing, or I remove sim card before flashing but I made a copy of apn just to be sure
Sent from my GT-P6200 using xda app-developers app

Arcia2012 said:
I only experience this every after flashing roms coz my apn settings always gets edited, what I did before if i dont want problems with wifi every after flashing roms using odin was I copied my apn settinngs and edit the wrong apn settings after flashing, or I remove sim card before flashing but I made a copy of apn just to be sure
Sent from my GT-P6200 using xda app-developers app
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APN has nothing to do with wifi. APN applies to your cell data connection. 3g, LTE, etc. not to wifi.

DigitalMD said:
APN has nothing to do with wifi. APN applies to your cell data connection. 3g, LTE, etc. not to wifi.
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I know but after editing it I can connect to wifi, I dont understand that much though, but it works on mine, in my other device like gt i9000 I only experience wifi issue due to imei got changed but that happened once usually its my apn settings got change everytime, I also search in the net and others also experience the same, I just followed their steps and it worked, i didnt say im right but maybe it helps..
Sent from my GT-P6200 using xda app-developers app

[Q] Anyone else randomly have their data stop working?

Hi everyone,
Just wondering if anyone's had issues with their data not working after while and require a reboot/airplane mode to work again?
I've noticed it both with Wifi and also with Mobile Data where one minute it'll work, and then suddenly I'll lose signal and need to reboot or switch on/off airplane mode a few times before it connects again.
Thanks!

Nope, haven't noticed anything like that yet. Is this happening on LTE or H/H+?

Nope. Do you have Chinese imported or International version?

Not stop, just slow...
Oneplus arrived from China and CM 11 was installed OK. For over a week everything has been fine using Virgin network in the UK.
Since yesterday though the data has been rather slow when browsing or using apps that require a connection.
When switching the data on the phone does recognise between 3g/H/H+ but when trying to load anything it is far slower than what it has been before.
I've tried clearing the cache and even clearing data but to no avail. Tried a factory reset last night and thought it was OK for a bit but today the same thing...
When using the browser pages will load but the blue loading bar at the top never moves past the first centimeter. (Doesn't move when using WiFi either though speed is finewhen using that).
Already contacted Virgin in case there were any issues but say the service is fine.
Any advice for troubleshooting or things to check would be appreciated.
Cheers
---------- Post added at 06:56 PM ---------- Previous post was at 06:06 PM ----------
Another reset and browser OK... Haven't done any updates or or signed in to Google account or reinstalled any apps. I think a slow and steady install of what I want and syncing to see if there's a clash somewhere. Hmmm, not happy at all
Sent from my Nexus 7 using XDA Free mobile app

CephiroX said:
Hi everyone,
Just wondering if anyone's had issues with their data not working after while and require a reboot/airplane mode to work again?
I've noticed it both with Wifi and also with Mobile Data where one minute it'll work, and then suddenly I'll lose signal and need to reboot or switch on/off airplane mode a few times before it connects again.
Thanks!
Click to expand...
Click to collapse
I have had it where chrome wouldn't load webpages, usually it would start working again after a minute or two.

*sigh*... Thought things were fine last night but using it now its back to being slow again. No idea what's going on. Main update I had to install was Play Services. Chrome seemed a little funny so decided to roll it back at at the time things were alright but using it now its annoying. Took about 4 minutes to download a 3.5 meg file whereas it should breeze through it. I'm not expecting miracles but past experience was far better. Don't know whether there's anything I can do or just raise an issue with my original supplier.
Sent from my One using XDA Free mobile app

Strange.. for me, it's been both H/H+, LTE and Wifi that have had it happen to me..
Also, it's not the Chinese version. It's the International version I got from Oneplus. Lately it's been ok, but we'll see how it goes..

APN settings ok?
Do you have your preferred network set correctly?

Personally I've noticed no difference. Its set as EE by default but manually added Virgin's own to try.
Been working quickly enough again without rhyme nor reason.
Sent from my Nexus 7 using XDA Free mobile app

CephiroX said:
Hi everyone,
Just wondering if anyone's had issues with their data not working after while and require a reboot/airplane mode to work again?
I've noticed it both with Wifi and also with Mobile Data where one minute it'll work, and then suddenly I'll lose signal and need to reboot or switch on/off airplane mode a few times before it connects again.
Thanks!
Click to expand...
Click to collapse
I can confirm the same happening to me... I'm on WIND Mobile in Ontario, Canada. It won't show that you lost the connection, things just stop loading... and the only way to fix it is to toggle airplane. It happens quite often, like a few times an hour. It's definitely a software issue that I'm hoping will be worked out in future updates, or maybe I'll have better luck with another ROM.
rAy

Same thing
ray2jerry said:
I can confirm the same happening to me... I'm on WIND Mobile in Ontario, Canada. It won't show that you lost the connection, things just stop loading... and the only way to fix it is to toggle airplane. It happens quite often, like a few times an hour. It's definitely a software issue that I'm hoping will be worked out in future updates, or maybe I'll have better luck with another ROM.
rAy
Click to expand...
Click to collapse
I've noticed it a few times where I'll swipe to the left (using Google launcher) and Google Now will indicate there is no internet connection even though I'm in an area with solid coverage. Usually if I swipe down a few times to refresh it will reconnect and update. Today however I had to reboot to reconnect. I have already checked my APN and it's fine. Did not have this issue even once with my Nexus 5 or my OPPO 7A I've been using. I'm going to check the CM bug log to see if it's been reported there.

I*have the same issue. Seems to happen when the 4g signal is weak and the handover to 3g does not happen. Then signal is lost instead.
I changed my APN now, but don't think it will matter... I'll give it a go. Using Franco kernel now, but is probably baseband related. Never had issues with my g2 previously on same location and APN.
In Norway BTW...reboot solve the problem temporarily

I have the same problem. My data connection will just stop at random and Facebook and Google now won't refresh, YouTube videos will suddenly stop playing, and upon hitting retry I'll get an error in both the playback screen and comments, and also the speedtest app won't finish preparing the test when I go to verify that my data connection is severed. I would have to restart in order to get data working again. I do get LTE speeds when it works, but it seems that the OPO takes longer to ramp up to those speeds compared to my Nexus 5 if that makes any sense?