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[Q] wifi intermittent

I have had my Galaxy S 4G about 1 month now and I'm a newb to Android. I've not rooted or done anything other than load more apps from the Market to try and learn more about this phone. It is out of the box stock as of 9/2011
My Wifi shows that it is on and logged on to my router at home and when I run the SpeedTest.net app it shows that ping works (though slow) and then the download runs but then times out with a network error.
All I do is toggle off the wifi and then back on again and try it again and suddenly it works fine for some extended time.
I have an I-pod touch that always works along with a laptop that has no issues with the 802.11 g connection from the same chair that I'm sitting in with the phone.
It is an annoyance to keep having to check for "quality of service" issues with an internet connection. You never know when you will have to toggle the service back on again or if you are just looking at a server issue on the other end of the connection
Is this a known problem with either Froyo, Samsung Galaxy or T-Mobile?
My config:
[t959v] = [SGH-T959V]
Firmware version
2.2.1
Kernal Version
2.6.32.9
Build #
Froyo.vuvkd1
Thanks in advance.

ggregor said:
Is this a known problem with either Froyo, Samsung Galaxy or T-Mobile?
Click to expand...
Click to collapse
Not to my knowledge. I had my SGS4G back in February before the KD1 update and never had the problem. It wouldn't be a T-Mobile issue as, whatever the problem is, is between your phone and the router. So T-Mobile is out of that equation.
Maybe try a factory data reset? Just a thought to see if it helps. I can't think of a good reason it would but it's just an idea. Given that you're not rooted nor running any custom ROMs or firmware I don't want to even think about pointing you down that road.
Have you tried it with more than the 1 router in the house? If it's a problem with wifi in general it could be defective hardware. If it's only with the 1 router then there could be other variables at play (type of router, security on it, & the SGS4G not liking that, etc.)
I'm rambling...but stumped a bit.

Called t_mobile support and once I got to the second level support person she had me stop by a store and get an updated Sim card.
My original card was 7 years old. I really didn't think that would matter, but so far it seems to have done the trick.
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ggregor said:
Called t_mobile support and once I got to the second level support person she had me stop by a store and get an updated Sim card.
My original card was 7 years old. I really didn't think that would matter, but so far it seems to have done the trick.
Sent from my SGH-T959V using XDA App
Click to expand...
Click to collapse
Awesome. Glad you got it working.

[Q] ics 4.0.4 stock ROM wifi stops working

On my completely stock xoom, running the latest build, the wifi stops working after a time (not *sure* how long, but let's say an hour or two). After the wifi has stopped, the tablet will not locate any network (AP) nor will it detect them on the wifi analizer app, with shows all the networks in range and their channels and strengths. The app shows no network activity, which I know to be incorrect. However, after I reboot, all is well... until it fails again. When 8t fails, also, turni g the wifi off and back on again does not fix the wifi (that being a solution I found on other tablets running ICS... any ideas what this can be? Thanks in advance!

Gnudoll said:
On my completely stock xoom, running the latest build, the wifi stops working after a time (not *sure* how long, but let's say an hour or two). After the wifi has stopped, the tablet will not locate any network (AP) nor will it detect them on the wifi analizer app, with shows all the networks in range and their channels and strengths. The app shows no network activity, which I know to be incorrect. However, after I reboot, all is well... until it fails again. When 8t fails, also, turni g the wifi off and back on again does not fix the wifi (that being a solution I found on other tablets running ICS... any ideas what this can be? Thanks in advance!
Click to expand...
Click to collapse
Man, if you are rooted, then I can help you better. With stock, it is very limited control that you have over your device. It is easy to root and install custom ROM that will fix most of your problems.

I was actually hoping for a solution that did not involve rooting
I was actually hoping for a solution that did not involve rooting the device. The tablet just came back from Motorola after being repaired for a defective screen. I was thinking that there may be a software problem in the build installed. If this is not a problem that is common on this device, then perhaps there may be a hardware problem, although it does not seem to act that way. . .

Can you do a factory reset?
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Yes, that was one of the first things I tried, as that is also the first thing customer support tells you to do. I honestly think that is the only tool they have to use.....

Perhaps its hardware related then. If you aren't rooted then send it back to Motorola.
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Wifi issues since ics update

I don't know if anyone else is having this issue or not but since I updated to ics UCLD2 and UCLE2 on both updates I seem to drop wifi connection every few minutes. Every few minutes I see a box come up that says connected to belkin. I know its actually dropping it because at times I will look up at the status bar and the wifi symbol that shows your connected won't be there then it will come back on and say connected to belkin. Its something in the phone because all the other devices on wifi in the house isn't having this problem. Anyone having or have had this problem? Any solutions? My wifi is set to never sleep and I've tried several wifi fix apps on the market and I've tried changing wifi channels still no luck..
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garydv2002 said:
I don't know if anyone else is having this issue or not but since I updated to ics UCLD2 and UCLE2 on both updates I seem to drop wifi connection every few minutes. Every few minutes I see a box come up that says connected to belkin. I know its actually dropping it because at times I will look up at the status bar and the wifi symbol that shows your connected won't be there then it will come back on and say connected to belkin. Its something in the phone because all the other devices on wifi in the house isn't having this problem. Anyone having or have had this problem? Any solutions? My wifi is set to never sleep and I've tried several wifi fix apps on the market and I've tried changing wifi channels still no luck..
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Click to collapse
Who's radio did you use?

xcrazydx said:
Who's radio did you use?
Click to expand...
Click to collapse
Its stock. UCLE2
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garydv2002 said:
Its stock. UCLE2
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Click to collapse
The stock one click leak?

xcrazydx said:
The stock one click leak?
Click to expand...
Click to collapse
Yes. Odin one click ucle2 then flashed cwm touch and rooted
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garydv2002 said:
Yes. Odin one click ucle2 then flashed cwm touch and rooted
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Click to expand...
Click to collapse
I have been on sky ics latest, with no problem yet, but its only been less than 12 hours. Did the drops start immediately or after some time?

xcrazydx said:
I have been on sky ics latest, with no problem yet, but its only been less than 12 hours. Did the drops start immediately or after some time?
Click to expand...
Click to collapse
It done it all the time on the previous leak ucld2. I thought the problem was fixed with this leak because it did fine for a couple of days it only done it a few times. But now its gets worse everyday. As long as I'm in the living room where the router is it only drops every now and then but in my bedroom away from the router it does it every few minutes....
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garydv2002 said:
It done it all the time on the previous leak ucld2. I thought the problem was fixed with this leak because it did fine for a couple of days it only done it a few times. But now its gets worse everyday. As long as I'm in the living room where the router is it only drops every now and then but in my bedroom away from the router it does it every few minutes....
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Click to expand...
Click to collapse
The only thing I could suggest is flashing romracers radio he pulled from the leak. Flash it once, wait a minute, then flash it again and wait 30 seconds and reboot. It may help, it may not.

OK I don't why but I read somewhere that the skyrocket don't deal with wpa and psk security to good so I removed the security off my wifi connection and renamed it something other than belkin. I did this about oh 4 hours ago and I have not lost connection once which is great but now my wifi is wide open with no security. Guess Ill have to put my monitor on it that will let me know if more than 5 devices are connected....
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xcrazydx said:
The only thing I could suggest is flashing romracers radio he pulled from the leak. Flash it once, wait a minute, then flash it again and wait 30 seconds and reboot. It may help, it may not.
Click to expand...
Click to collapse
Are you able to run security on your home wifi or do you just have it open? My wifi works better and faster than ever with not one disconnect as long as there is no security key to logon to the wifi. Its crazy I've never had this problem with any other device. And none of our other phones which include captivate infuse HTC status or our friends iPhone or laptops does it only my phone and only since the Android 4.0 upgrade. I flashed back to my nanadroid gingerbread backup earlier and it connected with no problems with the security on but soon as I flash back to ics is drops every few minutes until I turn the security off. So I tried the gingerbread modem with the ics and still the same drops every few minutes only with the security on. So I don't know I'm just leaving my security off and maybe when the official update comes out it will have a fix...
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garydv2002 said:
Are you able to run security on your home wifi or do you just have it open? My wifi works better and faster than ever with not one disconnect as long as there is no security key to logon to the wifi. Its crazy I've never had this problem with any other device. And none of our other phones which include captivate infuse HTC status or our friends iPhone or laptops does it only my phone and only since the Android 4.0 upgrade. I flashed back to my nanadroid gingerbread backup earlier and it connected with no problems with the security on but soon as I flash back to ics is drops every few minutes until I turn the security off. So I tried the gingerbread modem with the ics and still the same drops every few minutes only with the security on. So I don't know I'm just leaving my security off and maybe when the official update comes out it will have a fix...
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Click to collapse
Im not actually at home, I am running on hotel wifi which is not secure. So I can't test that for you.

My SR has had near flawless wifi in multiple networks / security types, on 2.3.5 /6 GB and on UCLE2. The 1 exception is my home router, where it would make the secure connection, but the broadband DNS server seems to block its data connection. This affected Cappy also, resolved both with static settings. The only wifi adapters I've seen needing open settings either needed newer drivers, or were damaged ones needing replacement. One workaround for your 5 at home is a MAC filtering list.

As for wifi issues,
the only serious wifi issues I had was when using Facebook. It simply could not hold a connection. Browser, any other apps all seemed to work fine.

pc103 said:
My SR has had near flawless wifi in multiple networks / security types, on 2.3.5 /6 GB and on UCLE2. The 1 exception is my home router, where it would make the secure connection, but the broadband DNS server seems to block its data connection. This affected Cappy also, resolved both with static settings. The only wifi adapters I've seen needing open settings either needed newer drivers, or were damaged ones needing replacement. One workaround for your 5 at home is a MAC filtering list.
Click to expand...
Click to collapse
My wifi router is a belkin and I just recently purchased it a couple of months ago so do you think it could be bad? Also when I go to my mother in laws she has a AT&T 2 wire wireless router with security on it and my phone does it there to. None of our other phones does this and also since I posted yesterday a friend come over with a galaxy s2 not skyrocket and it connected as well with no problems. Our router is set to dynamic connection. We have DSL which is a PPOE but when I set the router to PPOE and put in the user name and password it just connecting and sticks there so I changed back to dynamic...
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garydv2002 said:
My wifi router is a belkin and I just recently purchased it a couple of months ago so do you think it could be bad? Also when I go to my mother in laws she has a AT&T 2 wire wireless router with security on it and my phone does it there to. None of our other phones does this and also since I posted yesterday a friend come over with a galaxy s2 not skyrocket and it connected as well with no problems. Our router is set to dynamic connection. We have DSL which is a PPOE but when I set the router to PPOE and put in the user name and password it just connecting and sticks there so I changed back to dynamic...
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Click to collapse
Given the other phones work well it seems like a fault in your phone, not the routers. One troubleshoot/workaround is to enter appropriate static IP settings as detailed in posts 1 & 7 here. That will either stabilize it or show you need to reimage the phone with full wipes to test further. You can screenshot most of the settings you need using the Ipconfig app by Mankind, during a good connection. Just take care to choose a static address outside of the router's assignable DHCP range, to avoid conflicts.

The same issue exists on the recently rolled out official ICS update for the Galaxy Note, I'm having this problem with stock radio and no root.

Aero089 said:
The same issue exists on the recently rolled out official ICS update for the Galaxy Note, I'm having this problem with stock radio and no root.
Click to expand...
Click to collapse
As long as I'm connected to an open wifi connection it works just fine but if I secure it it constantly disconnects. I'm starting to wonder if its a Samsung problem now because my wife's Samsung infuse on gingerbread is doing the same thing. And its not just my home wifi it does it at friends house with secure wifi and at mother in laws to with secure connection but never on any open connection. Um my daughters two HTC phones does not have this problem so I'm starting to think maybe its a Samsung problem. I don't think its an android problem cause both the gingerbread phone and my ics phone is doing the same thing. If it is android its something in gingerbread that carried over to ics
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Had same problem
I had the same issue , went from 2.3.6 Gingerbread to the ICS UCLE2 leak and my wi-fi would turn on and off , so I just started from scratch went back to 2.3.4 via Odin , updated to 2.3.6 and flashed back to the UCLE2 leak via Odin and now it's working fine , I kinda figured it was a glitch in the software somewhere , from where I had changed rom's so many time's , and apparently it was , hope this was helpful.

Problem

:s

WiFi is not affected by radio ... you have another issue .

did some searching and i found a problem someone had that was similar with their S3. it could be a problem with the software in your phone or something. i would contact AT&T on the issue, you may need to send it in and get it fixed/get a replacement.
http://forum.xda-developers.com/showthread.php?t=1794927&page=6

josuemolina2000 said:
Hello everyone!
i have a Samsung Galaxy S2 LTE Rogers. Runing CM9.1. Using it at Claro in Ecuador. Everything runs smooth but the wifi, is not usable unless i stand nearby my router.. +10 meters away make the signal drop to one bar or disconnected. Even close to the router some times drop to 2 bars..
I tried:
Wifi Fix
FXR Wifi fix and rescue
Also install 6 different types of baseband:
Bell Note Base (celular signal stoped working)
ATT - UCLF5 Radio (came with UCLF5 leak)
ATT - UCLF6 Radio (From the Official ICS Release)
ICS RUXLF3
ROGERS - UXLF3 Radio (came with official Rogers ICS release)
ROGERS - UXKJ7 Radio (came with the official Rogers GB release)
Nothing seems to work, so I dont know what else to do, and is annoying because if i go to my room i cant get wifi or even when im at public places everyone else can get it but me.. If anyone can help me, ill really appreciate it.. Thanks in advanced..
Click to expand...
Click to collapse
go back to stock gb then follow the process for installing cm9 or cm10

Are you using it on 2.4Ghz band or 5? What channel? Also what kind of router? WiFi is controlled at the kernel level, your radio isn't a factor at all. Could be a hardware issue, but that doesn't seem likely. Try putting your phone outside of the router firewall through the DMZ setting. Could be a number of things. Also try downloading WiFi Analyzer from the market. It'll help in troubleshooting.
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tjsooley said:
go back to stock gb then follow the process for installing cm9 or cm10
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Click to collapse
i am in stock gb and wifi signal is the same.. BAD :crying: more ideas?

more ideas?
Sully6789 said:
Are you using it on 2.4Ghz band or 5? What channel? Also what kind of router? WiFi is controlled at the kernel level, your radio isn't a factor at all. Could be a hardware issue, but that doesn't seem likely. Try putting your phone outside of the router firewall through the DMZ setting. Could be a number of things. Also try downloading WiFi Analyzer from the market. It'll help in troubleshooting.
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Pretty sure is using only 2.4Ghz because wifi analyzer didnt show any stars about it.. what channel, cant tell u cuz i dont know how to check it.. router is not the problem cuz is happens in all wifi connections.. can i try installing a custom kernel that boost the wifi or something like that?
when i use it really close (less than 1 meter away) to the router or in adhoc with my laptop, the up/down speed is totally fine, the problem is the wifi signal range is so weak at distance over 1 meter which then affects also up/down speed.. im desperate.. thanks for responding..

Have u checked for interference from other devices. I am haveing trouble with that. My apartment buildings router is in my hallway so anywhere near it cuts my own WiFi down. Try turning everything off except ur router especially if you have a cordless phone.
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gargoyle_48770 said:
Have u checked for interference from other devices. I am haveing trouble with that. My apartment buildings router is in my hallway so anywhere near it cuts my own WiFi down. Try turning everything off except ur router especially if you have a cordless phone.
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Click to collapse
I dont have any other devices but the problem is not only with my router, is with ALL WIFI connecctions, ALL routers.. i dont know much of it, but i think is something about my phone signal strenght.. thanks for answering..

josuemolina2000 said:
I dont have any other devices but the problem is not only with my router, is with ALL WIFI connecctions, ALL routers.. i dont know much of it, but i think is something about my phone signal strenght.. thanks for answering..
Click to expand...
Click to collapse
Have you tried flashing Instigator X's kernel with CM9? Sorry didn't see the part where you said it does it on public WiFi too. Flash X's kernel and if you still get bad signal, it might just be a hardware issue and it might require getting it sent in. If you're back on stock try flashing Mohan's Cymbaline kernel.
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:s

Need help please. WiFi problems, can't find an answer anywhere...

Boy... I hope someone can help me out here. I have been searching for weeks with no luck. I have been having an issue with my stock 4.2.2 p5113 Tab 2 10.1 unrooted. I can't get it to find my home network. I can see my neighbors, even took it down to Arbys and was able to connect to their WiFi with no problems... Just can't connect or even see mine.
I have an Asus rt-n66r router. Have tried every channel and different frequencies. Changed every setting one at a time to see if it worked and nothing. Well... I take that back. Last night I turned off encryption and it popped up shortly... But went back away. When I go into advanced it shows the Mac address but IP says unavailable. I set up a static IP and that didn't help. I have reset the tab and router and even factory reset the router to no avail. It just doesn't make sense. Got this router back in March and its worked fine until now. Nothing has changed except me recently resetting the router to try and fix this. I have done everything I can think of but still can't see my own home WiFi. Everything else connects fine. Galaxy note 2, HP laptop on windows 8, smart TV, smart bluray, iPhone 5c, etc and everything else connects. Have even tried turning a few of them off to see if that helped but still nothing...
I really hope someone can help me. Had this thing for 2 years next month and it has always worked but at this point I feel like throwing it out the window LOL.
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Also use WPA2 encryption. Have tried just WPA and WEP push button but wouldn't find it still. And tried turning off encryption again and still not seeing my WiFi. Wanted to add that...
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Change wifi chanel,
Change password.
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Is this the only wifi device you own?
If you own another wifi device, does it see your wifi network?
Pp.

I tried every channel and none of them helped. Did reboot the router and changed everything and still not showing...
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No... Everything else works and shows the network. Have laptops, a windows tablet, an iPhone, a smart TV and blu ray and some galaxy note 2 phones and everything else works flawlessly. This galaxy tab 2 did and all the sudden can't see my home WiFi. Can see the neighbors, can see my TV sync and even worked when I took it to the local Arbys and used their WiFi. Only none it can't see is my router. I've only had the router since march. It cost about 150 bucks... Figured it would be decent... And it has except this one issue now...
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If a factory reset doesn't do it then your tablet is bonkers. If you scroll down to the bottom of list of networks is your network showing? Maybe it has (forgot ) your network?
Pp.

I went ahead and rooted and put on the slimbean ROM and still issue persists. So today I hooked up an old 15 dollar router I had from micro center and guess what? It showed up. So I factory reset my good Asus router and hook it all back up and still won't find it. I'm at a loss. Everything else in the house is connecting to that router no problem. Its some issue between this tab and this router... Only thing I dont get is why it worked before no problem and out of the blue it stopped connecting to the router without anything changing. I've been at this now for the past 24 hours pretty much non stop and I can't figure out what's wrong...
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Can you see your Asus router on the Tab WiFi networks at all? Is it at the very bottom saying "not in range" ?
Long press on it, if there you'll get option to "forget network" or "modify" / modify. If you don't see it them it's forgotten, try add new network,.
Pp.

No... It doesn't show up at all. I forgot it a long time ago. I do see my TV sync for the remote control and I see numerous neighbors wifi names come up... But not my Asus router LOL. Its just so frustrating especially after what I did today and could see the cheap Tenda WiFi router from micro center that I don't wish to use anymore because its old and out of date. I really am about to pull out my hair lol
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kalojado said:
No... It doesn't show up at all. I forgot it a long time ago. I do see my TV sync for the remote control and I see numerous neighbors wifi names come up... But not my Asus router LOL. Its just so frustrating especially after what I did today and could see the cheap Tenda WiFi router from micro center that I don't wish to use anymore because its old and out of date. I really am about to pull out my hair lol
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Click to expand...
Click to collapse
By "forgetting" a network you eliminate it from your list of networks, you then have to add it again as a new network. Could this be the case?
Images are examples of forgetting networks.
Pp.

No.. I understand what you mean. When I 'forget' a network, say on my phone, it will pop back up and I will have to click on it to connect to it. My home and guest WiFi names are no where on there. I scan and scan and they never show back up...
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That's weird! I think you should consider rooting and installing a custom ROM, maybe a stock rooted ROM. I have Android Andi's CM11 4.4.4 KK running on my P5113 and it runs great. I suggested custom rooted if want to use the TV remote app, if not you should try CM11.
Pp.

Do you have a link to that by any chance. I am new to this. I did root and use the slimbean ROM... And tried to use slimkat but I couldn't get it to work. I think it was my version of CWM I think... Thanks for all the help
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Here's the link for CM11 in case your intersted
http://forum.xda-developers.com/showthread.php?p=48520321
Pp.

Thanks again for everything. I did try again and got Slimkat put on here... So I will be able to flash others now... But just checked and my WiFi is still missing. Oy. But thanks again for everything! If anyone else knows please let me
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Please let the forum community know if you find the answer to this wifi mystery. ???
Pp.

Different kernel?
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Android-Andi said:
Different kernel?
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Op says stock /unrooted so only way to go to a different kernel would be to root and flash custom rom, and that will probably fix the issue. .
Pp.

Oh I did root and have flashed 2 Roms so far and neither have helped. Took the tablet down to McDonalds today and it was able to connect. But then went to a friend D's house, my phone connected to his WiFi but the tablet didn't see it. Seen his neighbors, but not his. So I am really lost at this point...
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