yashsingh1/xdaforums huggingface dataset:
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] TimeKillr:
It seems like there's a host of different problems, actually.

It's not necessarily tied to routers; 2 GS3s in my house, mine and my GF's. Mine disconnects from wifi all the time (it actually feels like the wifi crashes outright!) and while my GF's wifi never disconnects, *ever*.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] gfaulk09:
thanks.. this resolved my issue
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] BabyHuey:
If i uncheck this option in settings my wifi never disconnects anymore
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Aquila76:
Not all S3's have that option (my Verizon S3 doesn't). This is purely a craptacular chipset issue. I ran a SpeedTest today when connected to my router and got worse than 3G speeds, 1.3Mbps down & .6Mbps up. My wife's phone got full 24Mbps down & 6 Mbps up side-by-side. This is really starting to annoy me.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] BabyHuey:
I forgot im running aokp.. you probably arent im guessing?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Aquila76:
Yeah, AOKP isn't fully cooked yet for the Verizon 'locked bootloader' edition.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Deputy13:
You need to go into your router and change the DHCP setting so that it refreshes more often. Like every 2 weeks or so. It should fix your problems
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] SlimSnoopOS:
My home wifi actually suffers from not auto-connecting when selected. I've noticed this occurring half the time I try connecting and more so as my two week exchange/return period expired with Verizon. It really cripples my perception of this phone that wifi will not auto connect 100% of the time even when no other device is using the wifi network.

Is my issue similar in fashion to what you all are seeing?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] abteer:
No ours drops after connecting.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] SlimSnoopOS:
Hmm, well I appreciate the quick response. I was hoping these two were related at least.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] frope:
Same issue

I got my AT&T SGS3 a few days ago, and I'm having the same issue with Wifi.

My phone disconnects and reconnects fairly often to the Wifi (even with the Sleep policy set to 'Never'). And sometimes it will show as a great connection, but it doesn't actually surf the web or anything -- there's no connectivity.

And it's not just at home. I have tried several Wifis, at my home (Linksys), friends' places, and at the University where I work. These all use different encryption types. The connectivity lasts for a few seconds after connecting but quickly dies, despite the phone showing as still connected to Wifi. All the fixes I've read about online have not worked for me for any prolonged period of time.

I think I'll try a hard reset of my phone. If that doesn't work, I'm gonna try to get AT&T to send me a new one, since I'm within the 30 days and others apparently aren't having the issue. I'll post back if the hard reset works.

-Frope
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Deputy13:
you need to log into your router and change you DHCP (Dynamic Host Control Protocol) Setting to where it refreshes more often, it is prolly set to never. Change it to like every 2 weeks or less if you have a lot of devices coming in and out of your house.

---------- Post added at 02:38 PM ---------- Previous post was at 02:36 PM ----------

you dont have to hard reset. read my above post it should fix your problem
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] frope:
Thanks for the quick reply, Deputy. If you're referring to the DHCP Client Lease Time, it is currently set to 0, which it explains is equal to a day. I'm not sure I see any other settings that might be what you're talking about, and I'm pretty familiar with my Linksys firmware?

But in any case, it's a phone issue, methinks, since it happens just as badly at work and friends' houses.

I'm still unrooted...if you don't think a hard reset will fix it, will rooting and flashing the CM9 nightly fix it? Do we know if this problem is tied to the kernel, or what? If it's not happening to most users (and I'm not sure whether that's the case), then what's the difference among our phones? Is it hardware or software?

Also, I should note that the *#0011# fix works for me technically, but I find it unacceptable that I must then live with a screen timeout effectively being set to "Never" when I turn off the power save mode to fix the issue. There's gotta be a better way...
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] frope:
Must be hardware?

OK, I tried hard resetting it, and as you predicted, it did nothing to fix the problem. I have also just flashed CM9, but it still has the same problem. Faaail.

Am I to then assume that it must be hardware?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Deputy13:
if im not mistaking the 0 would mean never unless it specifically states otherwise. this fixed and isse i had with my infuse. try changing the value to something different. if its in minutes 1440 = 24 hours.

i was trying to reply before you reset your phone. if that doesnt work then idk what it could be. could have a bad phone..
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] frope:
Yeah, it says 0 equals one day. I think I have a bad phone....since I flashed CM9, the phone has stayed warm/hot and the battery has drained super quickly. How frustrating. Guess I'm gonna flash back to stock and get AT&T to send me another one.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] gatorguy4974:
So my problem is kind of different. WIFI doesn't disconnect, the signal is just SUPER weak. I tried the *#0011# trick and that did not help. I can have my phone and iPad side by side and my s3 will have 1-2 bars while my iPad has full signal. Also, I can be like twenty feet from my router and I start to drop signal. I LOVE this phone and want to stick with it but my s2 never had this problem. I'm still within my 30 days, should I exchange it or is this something I will have to live with?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Aquila76:
It seems like some radios that shipped out are very poor. Explain your situation to tech support and they might swap out the phone.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] King Shady:
This is my exact problem. The WiFi reception is absolutely HORRIBLE. I will be literally two feet away from my router with 3 out of 4 wifi bars. Why the hell should I be getting 3 bars when I'm right next to the router...? I'm going to try the fix that the OP posted and if that doesn't work then I'm going to flash back to stock.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Rob_Wing:
Anyone else tried giving your phone a static IP? I was having tons of issues with WiFi before I did that and it seems to have corrected the problems.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] deltax153:
any solutions?

still no solutions to this issue? I have gone through all these steps and still notta...i have switched kernels modems roms and nothing fixes wifi issues. the only thing that is effective is *#0011# but its annoying to do it at boot everytime and some roms dont support entering that code...ie cm etc.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] abteer:
If you're on at&t the latest leak fixes it.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] JB calhoun:
I run 0011 it says invalid mmi whats that?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] deltax153:
installed and wifi is working beautifully....however.... what happens if i want to flash a new rom? Wont i lose that wifi fix? Am I stuck with the new leak until someone incorporates that code in their rom? obviously i am confused. thanks for reading
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] abteer:
As long as it's based on the leaked ROM you're good. But as far as cm10/aokp we'll have to wait until those devs fix it. But I don't see them doing so because nobody in those threads ever complain about WiFi.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Threezees:
I fixed this issue on my S3 by changing from DHCP to Static IP under advanced settings. If you're having issues, try that.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] mtsang24:
This issue is making the phone totally useless to me and I'm starting to really regret getting it now. *#0011# worked alright, but after flashing CM10/AOKP the service menu can't be accessed anymore and wifi drops within about 2 minutes of turning it on. Tried changing all the settings, static IP, etc, no dice. I can't believe more people aren't complaining about this... is it a case of defective phones or what? Since it seems like custom roms are unusable it looks like I'm going back to a stock rom. Can the newest AT&T one with the fix be used on a Bell phone by any chance?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] galaxys34lyf:
What is this new AT&T leak? JB? If it's JB, does this mean that when the official update happens, this wifi issue will be resolved?

I am debating whether to exchange my S3 for a new one, since none of the fixes mentioned in this thread worked. If the update will come soon, I'd not return my phone and just wait for the update to fix things...
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] deadlyrhythm:
Try doing *#*#4636*#*# to get those settings
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] jaredt:
It's actually *#*#4636#*#*

However, there doesn't seem to be any way to disable WiFi sleep in that menu. Anyone else have any luck with this?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] abteer:
No luck here went through all the menus about 20 times.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] abteer:
I found an app in the play store called wifi fixer. It doesn't totally fix the problem but resets your wifi when it needs to be. Wifi has been a little more functional with it, especially on CM10.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] eduardo_b:
That worked for me, but my situation may be different to start with. I've not had issues with wi-fi connecting, but Time-Warner recently replaced the cable modem that was connected to my Linksys (g/b) router with a Motorola modem/wi-fi router (n/g/b) -- now I get 50 Mb/sec instead of 15. S3 wi-fi would connect and bars would go from dark grey to light grey. But when phone went to sleep and I clicked and swiped, wi-fi reconnected but the bars stayed dark grey and there was no traffic. If I then clicked the screen off and then back on and swiped, the bars were light grey. The modem is set to 2.4 GHz by default to accommodate backward compatibility to g from n, so your post reminded me to reset the phone frequency from auto to 2.4. Now the bars are always light grey. Thanks. :victory:
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] deadlyrhythm:
This sucks, wifiFixer app didnt help. Changing the frequency band from Auto to 2.5Ghz didnt help either.

Whats this fix this person was talking about ?

Is it just an ATT thing?

Anyway, im on Rogers with the latest AOKP + AOSP rom and kernel. Still extremely crappy wifi
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] jaredt:
Same here. WifiFixer technically worked, but it caused my wifi to cycle so much it was effectively useless.

Not sure if this is useful to anyone, but I flashed back to the official stock build (I747UCLG1) this morning because I'm considering returning the phone to AT&T (still in the 30 day return window), and now the wifi issue is gone. Seems like maybe root access could have been the cause of problem. I'll probably still try to exchange the phone though...I'd really like to use CM10.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Gadgetz:
On mine, I only get WiFi dropping if the signal is one bar or less....so like someone suggested I unticked "don't use poor wifi connections"
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] mtsang24:
Just flashed Ariel, which is built on the AT&T leak, wifi is fixed!
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] tehsprayer:
Getting same problem bump !
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] tehsprayer:
Bump for MMI Code invalid?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] abteer:
If you're on a touchwiz rom then it's *#0011# if you're on a aosp based rom the code doesn't work.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] JB calhoun:
Dont work on all TW roms man

Edit... im on TW and get the invalid code too so i know its not for everyone
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] abteer:
It works on ariel but not needed as the UCLAH1 leak fixes the WiFi for me. What rom are you on?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] JB calhoun:
Nuns....and i also tried team insomia..
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] daddymatt:
What ROM are you on? I've tried it on the top 3 TW ROMs and it worked great...

Sent from my SGSIII
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] abteer:
Just installed triuneII and was able to input the *#0011# code in the dialer and it worked. Flashed the chastity theme and it worked also. I would full wipe and install again.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] tehsprayer:
Does anyone know what to dial for the Bell Network my MMI is invalid?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] RaymondPJR:
Are you on a custom ROM, some AOSP ROM perhaps? No way to change that on stock Samsung as far as I can see.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Charleszan:
Same here but with Telus.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] JB calhoun:
I'll try that and yea a few have said it works I am gonna wipe real good idk why it keeps saying mmi invalid
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] bigfdaddy2:
Worked like a charm for me ty....can someone make a list of all the dialer codes that are available for our phone and list what they do I r access....
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] perry_henis:
Just flashed LH1 and no improvement. Did a speed test and it's awful. 3Mbps on wifi compared to 25Mbps on LTE

I'm outside the 30 day Window so should I go to bell or Samsung Canada?

I think I have a lemon phone.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] gmak_gr:
My S3 connects perfectly to most routers; apparently not with to the one at work. It would connect at once but no ping. First tried setting up static ip, then the wifi setting in the service menu but both didn't work. At work we have a generic Thompson router which offers aside the auto function, 13 channels to choose from. Apparently setting the router to channel #8 communicates with the samsung s3 wifi.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] thatsupnow:
It be nice if there was a script to make the power save off setting stay off all the time instead of having to turn it off every reboot

Galaxy SIII via XDA premium
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] scorpion667:
FYI

I have the Bell I747 on stock bell ROM.

I have tried a few kernels and I noticed the stock rooted AT&T kernel I flashed yesterday made my S3 experience these issues. I flashed back to Bell stock Kernel and problem dissipated, wifi was reliable. Also I don't have any problems with KT Kernel either in terms of wifi but even with thsoe working kernels my WIFI rarely ever sleeps with screen off which is very annoying. Mind you I have selected the wifi to auto turn off during sleep, it just doesn't want to do it.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] sunilreddy:
Issue solved for me now.

I got AT&T GS 3 and had this from 3rd I got my phone. I got wifi disconnect issue at home and also at friends place but when I connect to at&t wifi hotspot it work just fine. I tried all the settings mentioned in this post and there was no luck. I played with all router settings to fix this problem.

Disconnecting problem disappeared for a day when I rebooted my router but problem reappeared next day. Then I thought there must be some kind of settings in my router that could cause the problem then starting changing few settings. When I changed "IP address setting" from auto to Use DHCP server under IPv6 then wifi disconnection issue is gone.

For now problem is gone and I will update I found something.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] master0fall:
I tried everything except flashing stock rom but the problem went away when i changed dynamic ip to static under avdanced settings. Dint think it would be so simple

EDIT: Oh by the way i solved the problem on GS2 i9100G ICS 4.03
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] ryanoption:
HA! Buddy I have tried and tried over and over in the Task and Kootnsez thread and I just get shut out. I asked to see if they could implement the WiFi powersave option into their ROM or of the option is there and I'm missing it.Even offered to donate but was basically told "sorry about your luck" and they will not take money to fix the issue.I was just trying to help and get the Holy Than Thou attitude like always on this forum. Anyway I have tried every ROM, modem, kernel, router setting you can think of.I flashed all the way back to out of the box stock last night and updated my device OTA and turned off wifi power save and it kicked my speed up to about 3Mbit which was better than the 1Mbit I was getting on Task and Ktoonsez ROM.It must be a JB issue right?I am about to send my phone to Samsung unless someone has another suggestion.Really glad I found this thread and some devs need to read this as well.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] abteer:
It's something to do with your WiFi cycling down when not in use and it not ramping back up when you use your data again. It's not kernel related. If anyone knows what else effects WiFi in the rom please let us know. I think I'll be returning mine also. Returned one in my first 30 days and it didn't help. I really don't want a refurb but I'm probably going to sell it soon anyway for the nexus 4.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] gatoremt:
I sure wish I could stop dropping my wifi signal. :mad:

Sent from under my bed via my GS3
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] abteer:
Me too. It's so damn frustrating. I think it's literally driving me insane.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] gatoremt:
Me too. I have had more problems with AOKP rom's. I tried BlackJelly and never had problems with wifi.

Sent from under my bed via my GS3
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] abteer:
Been on CM10. Try AOKP every once in a while. WiFi always drops. I'll try BlackJelly. Thanks.

Edit.... Realized it's stock. Wish I could run stock but I can only for a day and then run back to aosp Wi-Fi or not.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] JethroCl:
I find it sad to hear that the only solution to this problem is turning off the wifi power save mode, so now it eats battery as crazy!

I had this issue on stock 4.0.4, then I rooted my phone to 4.1.1, issues were gone (for then), after a while issue came back. Then updated to 4.1.2 issues were gone (again for then), after a while it came back again. So now I'm out of luck!

It seems that disable and re-enable Wifi fixes the problem for a couple of hours, but then again it starts disconnecting again.

I really love the S3 (in particular battery stamina), but solving this issue in this way, puts me back to square one. HTC Sensation XE had terrible battery but could keep wifi connection without a problem.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] MrNago:
No offence, but I think you contradict yourself.

We just have the choice, either not dropping or increased battery life.

Everything comes at a cost!

Glad to understand now, thanks for the "fix"!
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Cusa:
Nothing happens when I dial *#0011#. It tells me connection invalid or lost mmi code.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] mofadr:
Fix wifi interruptions

Hi Guys

I am excited because, at 3 am (after a long nap), I found out that wifi interruptions stop when I assign a fixed IP address to my wifi connection. I long-clicked on the name of the wifi connection (SSID), then I chose modify, assigned a fixed IP address (which matched the same IP address that I assigned before on the router for the Galaxy MAC address).

The wifi has not interrupted for the past 30 minutes, after it used to be interrupted every 2.5 minutes, probably trying to find a new IP address every time.

I hope this helps everyone.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] varun1994:
Thanks

Thanks, because of you I am using wifi without and disruptions. There is one problem though, everything is fine till my tablet is on. But on rebooting the "Wifi Power Saving" automatically turns on. So, instead I do not follow your fourth step. But thanks anyway :o
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] dusty1268:
My girlfriend has the i747 and I have the i9300.. we have been getting this issue where the connection will fail to connect or obtain the ip address to our wifi connection and after a few seconds of trying to connect it would just say, "Disabled. Weak Signal" or something along those lines.. cant remember exactly what it said.. But I clearly had a strong signal as we had all bars showing.. I restarted my router and our phones connected instantly afterwards but it has happened more than once. Anybody know the issue? She's running JB 4.1.1 stock and I'm running JB 4.1.2 stock..
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] artnoc310:
This seems to be working for me. But when I reboot it turns back on again. At home I limited my router to 54mbs and that worked. I'm having issues at school, University of Florida. I can't really modify their wifi routers.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] mitchpunk:
No fix for this yet?

Dropping wifi drives me crazy !!!!

Sent from my GT-I9300
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] mitchpunk:
Switched to PA ROM and my WiFi drops stopped forever! Hahahah.

Sent from my GT-I9300
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] rickeh82:
this works for me on my I747M, thanks a bunch.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] danyznd123:
I have this problem on my galaxy s4 mini GT-I9190...

dont know how to fix this... :mad: :(
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] RyMackAttack84:
I didn't have the issue of power save mode turning back on

I didn't have the issue of power save for wifi turning back on. However, I also didn't have wifi turned on at all during the process of turning off the power save mode. It also didn't come back on even with a hard reset. I tried the whole process again with wifi turned on before turning off the power save mode and after a reset, power save turned back on as has been noted previously in this stream. I wanna say the fix to power save not just turning back on is to have wifi turned off before you go through the process of turning off power save mode. I also have Always Allow Scanning and Auto Network Switch unchecked in my wifi options. So far this fixed my wifi dropping issues and has stayed permanent but we will see.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] a7medabdou:
Hi guys I have or I had the same problem and I figured out what caused it for me

I recently installed the new version of Kaspersky internet security

And after I did the problem showed up and I couldn't figure out what caused it

But I formatted my phone galaxy s3 by the way

And everything worked great till I activated the Kaspersky premium

The wifi kept connect and disconnect first very often then alot until I couldn't handle a Skype call

And now I have uninstalled it and reported back to Kaspersky, Co to fix this

Hope I may helped someone
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] ALMOSTxFAMOUS:
I used to have this problem until I flashed Quantum KitKat Rom with latest kernel. Awesome Rom!

I believe problem is the wifi driver and the Quantum Kernel update that driver. I don't find myself about to throw my s3 in air and hit it with a baseball bat untill my LTE start dropping.

Hope this help.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] hckrjhn:
Switching from auto to 2.4 Ghz worked for me. Thanks!