yashsingh1/xdaforums huggingface dataset:
[Galaxy S III Q&A, (US Carriers)] sekigah84:
There are a lot of users reporting WIFI disconnect/reconnect issues with the Galaxy S3 across all US variants and even the International version.

Open and unprotected wifi network

There have been users reporting that using dual encryption AES + TKIP cause numerous issues and using one encryption will decrease the frequency of the disconnect/reconnects but not eliminate it.

So to see if we can find the cause of this, I'm going to need your help.

I would like those users who are experiencing this issue, to post the following information:

Carrier:

Memory Capacity: (16GB/32GB)

Rooted? (Yes/No)

If so, which ROM:

Network Type: 2.4GHz(b/g/n), 5GHz(a/n)

Network Security Type: (None, WEP, WPA-PSK(TKIP), WPA2-PSK(AES), TKIP + AES

Security Encryption: (Automatic/Shared Key)

Are there multiple networks near you?

Issues you are having:

Please try to keep chatter to a minimum. Only try to post results. I will update the OP if there is a discovery or if there is a solution found!

----------------------------------------------------------------

Causes:

Unknown. Samsung knows about the issue and is working to fix it.

Solution:

There is a method that will reduce this from occurring but not eliminate the issue:

Go to your dialer and press *#0011#

"Menu Key"

WIFI

Turn Off power saver option for WIFI
[Galaxy S III Q&A, (US Carriers)] pakxelaos:
No problem here

Carrier: AT&T (International Version)

Memory Capacity: 16GB

Rooted? No

If so, which ROM:

Network Type: 2.4GHz(b/g/n),

Network Security Type: WPA2-PSK(AES), TKIP + AES

Security Encryption:Shared Key

Are there multiple networks near you? No

Issues you are having: None

Now using International Version (original firmware: Germany VD2).

Will do some more test when AT&T version coming this weekend :good:
[Galaxy S III Q&A, (US Carriers)] sekigah84:
is it AES or both?
[Galaxy S III Q&A, (US Carriers)] pakxelaos:
Sorry,

It's WPA2-PSK(AES)
[Galaxy S III Q&A, (US Carriers)] sekigah84:
Carrier: Sprint

Memory Capacity: 32GB

Rooted? Yes

If so, which ROM: Stock

Network Type: 2.4GHz(b/g/n), 5GHZ (a/n)

Network Security Type: WEP

Security Encryption:Shared Key

Are there multiple networks near you? Yes

Issues you are having: None
[Galaxy S III Q&A, (US Carriers)] stan.s:
I think that you need to add the model of router and the length of the key to this questionnaire. People are reporting no problems with home but problems at the office, etc.

---------- Post added at 08:21 AM ---------- Previous post was at 07:59 AM ----------

Carrier: ATT

Memory Capacity: (16GB)

Rooted? (Yes/No) Have tried both

If so, which ROM: stock/MrRobnson

Router/Firmware: Linksys WRT-610v2 DD-WRT v24-sp2 (08/07/10) mega (SVN revision 14896)

Network Type: 5GHz(a or n only) (I was wrong, it does do "A" protocol)

Network Security Type: (None, and WPA2-PSK(AES),

Security Encryption: (Shared Key)

Key Length: 24 character

Router/Firmware: Linksys WRT-610v2 DD-WRT v24-sp2 (08/07/10) mega (SVN revision 14896)

Network Type: 2.4 (n only)

Network Security Type: (None, and WPA2-PSK(AES),

Security Encryption: (Shared Key)

Key Length: 24 character

Router/Firmware: Netgear WHR3500L V1.2.2.46_35.0.57SK

Network Type: 2.4 B/G

Network Security Type: WPA2-PSK(AES),

Security Encryption: (Shared Key)

Key Length: 24 character

Are there multiple networks near you? yes

Issues you are having: disconnect/reconnect on all combinations of above

---------- Post added at 09:07 AM ---------- Previous post was at 08:21 AM ----------

Carrier: ATT

Memory Capacity: (16GB)

Rooted? (Yes/No) Have tried both

If so, which ROM: stock/MrRobnson

Router/Firmware: Linksys WRT-54G v1.1 DD-WRT (some old one with all default settings)

Network Type: 2.4G

Network Security Type: none and AES

Security Encryption: open and WPA2-Personal

Key Length: 24

Are there multiple networks near you? yes

Issues you are having: NONE!
[Galaxy S III Q&A, (US Carriers)] the1stSecond:
Carrier: AT&T

Memory Capacity: 16GB

Rooted? No

If so, which ROM:

Network Type: 2.4GHz mixed 5GHz mixed

Network Security Type: None, WPA2/WPA Mixed Mode

Security Encryption: Shared Key

Are there multiple networks near you? Yes

Issues you are having: intermittent disconnect, long scanning times before reconnect

Router: Linksys E4200v1

Firmware:1.0.04
[Galaxy S III Q&A, (US Carriers)] baddison:
Carrier: AT&T

Memory Capacity: 16GB

Rooted? No

If so, which ROM:

Network Type: 2.4GHz mixed 5GHz mixed

Network Security Type: None, WPA2/WPA (AES)

Security Encryption: Shared Key

Are there multiple networks near you? Yes

Issues you are having: intermittent disconnect, long scanning times before reconnect

Router: Netgear N600 (WNDR3700v2)

Firmware:1.0.0.6
[Galaxy S III Q&A, (US Carriers)] ewingr:
Carrier: AT&T

Memory Capacity: 16GB

Rooted? No

If so, which ROM:

Network Type: 2.4GHz

Network Security Type: WPA-PSK/WPA2-PSK

Security Encryption: Automatic

Are there multiple networks near you? Yes

Issues you are having: intermittent disconnect, long scanning times before reconnect; occasionally need to manually reconnect.

Router: TP-Link 300 M

Firmware: 3.12.2 Build 100820 Rel.41891n

Note re: those seeing no issues

I was claiming that mine worked fine. But then I set up a task in Tasker that relied on a continued Network connection, and then found it problematic. I ended up setting up a task to say "WiFi Connecting" when it was connecting, and "Wifi Disconnected" when it disconnected. Now I realize it is happening, sometimes multiple times per hour.

I would bet that some of those saying no problems just don't know it.
[Galaxy S III Q&A, (US Carriers)] neyenlives:
Netgear WNDR3700 V1 with WPA2-PSK

No problems whatsoever. Keeps a constant connection, also it is able to connect to my router from a seriously long way away. Was walking around the apartment complex this evening and I joke you not, easy 50 yards away it connected and kept it and it was very usable. Obviously a little slow but not by much. The GSIII wifi is great here.
[Galaxy S III Q&A, (US Carriers)] stan.s:
I would like to mention that my Netgear N300 WNR3500L won't connect at ALL when set to Auto and "Up To 300mbps". "Up to 145 mbps" is okay, usually negotiates 65-72mbps. The encryption is WPA2-PSK AES. Interestingly, when my WRT610v2 is set to 40mhz on the 2.4 band, the phone will connect intermittently and making the router 20mhz on the 2.4 band doesn't offer relief.
[Galaxy S III Q&A, (US Carriers)] sekigah84:
Does logcat show wifi connects and disconnects?
[Galaxy S III Q&A, (US Carriers)] sabreful:
I have noticed a few calls regarding this issue where I work. From what I'm noticing, it's coming through *mostly* regarding 5Ghz frequency. Supposedly it has become big enough of an issue and I will also update when we have a little more information
[Galaxy S III Q&A, (US Carriers)] DarkPyroGuy 09:
Carrier: T-Mobile

Memory Capacity: 16GB

Rooted? Of Course

If so, which ROM: Stock with Bloat removed

Network Type: 2.4GHz(b/g/n)

Network Security Type: WPA2 Personal

Security Encryption: Auto

Are there multiple networks near you? Yes

Issues you are having: Wifi drops out for about 30-45 seconds then returns by itself.

-----------------------------------

Router

Airport Extreme

Lastest Firmware 7.6.1
[Galaxy S III Q&A, (US Carriers)] TimeKillr:
Carrier: Rogers

Memory Capacity: 16GB

Rooted? Yes (still happened while unrooted)

If so, which ROM: Stock

Network Type: 2.4GHz(b/g/n)

Network Security Type: WPA2-PSK(AES)

Security Encryption: Automatic

Are there multiple networks near you? Yes

Issues you are having: When the phone goes into sleep, it loses the WiFi connection every time unless I set WiFi power saving to off.

I think it's important to notice that I'm 100% sure it's a quality control issue: my girlfriend, who got her phone exactly at the same time as me, seems to have a better device, strangely. Her WiFi *never* drops off (especially when she's at my place, where mine does when it goes in deep sleep), her touchwiz is strangely faster (and that is WITH an animated wallpaper!). If anything, she has a white device while I have a pebble blue.
[Galaxy S III Q&A, (US Carriers)] jkxklutz:
Has this been posted yet?

The user who goes by the name of cary328is has suggested the following which they claim “was learned from XDA developers:

1. Go to your phone dialer

2. Dial *#0011#

3. When you see the “ServiceMode” screen, press the left menu button

4. Select “WiFi”

5. See that “Wifi Power Save Mode” button that is “ON” – well turn it “OFF”

6. Exit this menu, turn off your Wifi and turn it back on. If you already entered all your wifi credentials, forget your network info (remove it) and re-enter it again.”
[Galaxy S III Q&A, (US Carriers)] sekigah84:
Has anyone with issues tried the above method?
[Galaxy S III Q&A, (US Carriers)] stan.s:
Sigh, doesn't work. Its not even as good for strengthening the gs3 signal as the plain power save being turned off. It is not a solution, even a temporary one. FWIW, Samsung is very interested in finding a solution and hopes to have one as soon as possible, but it is still under analysis. They've called back.
[Galaxy S III Q&A, (US Carriers)] nitra:
Might not be entirely on track here, but I managed to resolve all of my wifi issues with my Linksys E4200 and E3200 in the office.

Maybe whoever is talking to Samsung can pass this along, if WMM is set on the e4200/e3200 to disabled, wifi will fail, most of the time it won't connect at all and if it does connect, it's spotty as hell.

Enable WMM, auth is nearly instant and connection is stable.

Hopefully this helps someone.

Side note: WMM is burried in the QOS menu of the router.
[Galaxy S III Q&A, (US Carriers)] gingson:
If you are on Sprint, disable the Sprint Automatic Connection. This resolved my issue with intermittent WIFI connection.
[Galaxy S III Q&A, (US Carriers)] ewingr:
I noticed over in DEV that there is a kernel that had updated Wi-Fi drivers. I'm not rooted or anything, not ready to try it I have no idea if that would help or not, but thought I would point it out in case someone wanted to give it a try
[Galaxy S III Q&A, (US Carriers)] sekigah84:
Can someone confirm on their routers if this works? If it works on other routers then I'll update OP
[Galaxy S III Q&A, (US Carriers)] Brianaro:
Memory Capacity: 16gb

Carrier: AT&T

Rooted? No

If so, which ROM:

Network Type: I have a problem with 2.4 and no problem with 5

Network Security Type: WPA2-PSK(AES

Security Encryption: Idk

Are there multiple networks near you? 2 in my house and 1 from neighbor
[Galaxy S III Q&A, (US Carriers)] ewingr:
JFYI...I tried, but cannot find any settings in my TP-Link for QoS or WMM (which I presume is Wireless Multimedia Extensions support).

Also, I did post a question over in the Kernel Thread I mentioned a bit earlier here, asking if anyone there has experienced a fix for this problem if moving to that kernel. If I see any positive feedback, I'll post back here on that. There's been quite a few posts there since, and not one squeak about my question. So I"m guessing nobody has tried.
[Galaxy S III Q&A, (US Carriers)] sekigah84:
Thanks. I hope that the cause can be found. Like what was stated before, it might be a production issue.
[Galaxy S III Q&A, (US Carriers)] capercb:
I know the first s3 i had would not stay connected to wifi , i tried every temp fix there was but nothin call my phone company and explain to them what was going on with the wifi to my surprise I was told to return it for a new one in which I did and haven't look back ...told the rep that it look like the s3 had some really bad wifi problems and was told if the new one had it just bring it back for another new one and if that had problems it would be up to me to get a new s3 or something eles . the new one is rocking on the same router , even secure it up tight and ran the s3 through every setting on the router and not a hiccup.....good luck trying to get it to work hopeful it software rather then hardware - why fool around with it jesus they r brand new phones bring them back let samsung fix it..:confused:
[Galaxy S III Q&A, (US Carriers)] ewingr:
Lordy...I hope not.

Update on WMM test for me

I found that my firmware on my router was a bit old. So when I was about to update the firmware I found that the backup of config would not restore to the new firmware. So while documenting the config, I finally ran across the WMM setting in my router (in my case, not under QoS...still never found anything on QoS). Turns out that setting was on all along. So, at least in my case, it is NOT a fix.

I've got my fingers crossed that someone facing this issue will be a Rom/Kernel explorer, and try the one I linked and find it helps.
[Galaxy S III Q&A, (US Carriers)] stan.s:
I have always had the wmm turned on, I stream netflix,Hulu ,etc but I had the ack turned off, so I turned on the ack but there was no change. And I also was granted a new phone, straight from Plano to no improvement. I even thought that the bt was f*d, until I did a hard reset on my headset.
[Galaxy S III Q&A, (US Carriers)] the1stSecond:
No change in problem for me. My WMM was already enabled. E4200
[Galaxy S III Q&A, (US Carriers)] ewingr:
WiFi Keep Alive

I installed WiFi Keep Alive and did a bit of testing.

In default mode, still intermittent.

Work Around 1 enabled (creates a WiFi lock), still intermittent.

Work Around 2 enabled (Screen off, but in 'partial wake mode', to keep a lock), overnight no drops. Hits battery pretty hard. Continuing today to see what happens.

Someone said they talked with Samsung, and they are working on it. (Don't remember if that was in this thread). My contact with Samsung was useless...they pointed to Google.
[Galaxy S III Q&A, (US Carriers)] stoicism:
Carrier: Bell

Memory Capacity: 16GB

Rooted? No

If so, which ROM:

Network Type: 2.4GHz

Network Security Type: WPA2

Security Encryption: Auto

Are there multiple networks near you? Yes

Issues you are having: intermittent disconnect, no connection even while "connected", massive battery drain when wifi "always" on. Went into Service Mode to turn off wifi power save, setting doesn't save for more than couple hours.

Router: Apple Time capsule
[Galaxy S III Q&A, (US Carriers)] ewingr:
Ok. since posting the above, it has disconnected twice. Uninstalled WiFi KeepAlive.

BTW...in case anyone is wondering how I can be so precise about lost connects: I have a task in Tasker that increments a variable every time it disconnects, and a shortcut on my desktop for it to say to me the value of the variable.
[Galaxy S III Q&A, (US Carriers)] ewingr:
You know, maybe it is just a few. Really, not that many posts here on this.

I'm going to exchange mine and see what happens. I hate to go through all the setup again, but I guess that's what I need to do.
[Galaxy S III Q&A, (US Carriers)] clockcycle:
I had issues at work. But not at home.

Today I told it to forget my B/G radio and to connect to the N radio. No disconnects, none..

No changes made to the phone at all..
[Galaxy S III Q&A, (US Carriers)] blue265:
When you guys say Wifi disconnects, is it completely disconnecting and you have to go and connect to it again?

I have this issue both on my i9100 and i747 where in Youtube or Google play store, it will say network problem, push to retry. I am always having to click the retry button to reconnect to the Play store or Youtube. I think its my router Linksys DIR-615 causing this.

I just wanted to see if you're whole wifi is disconnecting or if you're having the same problem where you have to keep retrying in apps for the data to connect again
[Galaxy S III Q&A, (US Carriers)] ewingr:
Yes, and no. Often it does a short disconnect, then reconnect. Other times, I have to go in and manually reconnect.

I have my exchanged phone now. Before the day is out, I hope to know if it works better.
[Galaxy S III Q&A, (US Carriers)] blue265:
Hopefully it works better, let us know for sure. I know for sure that my 'touch to try again' network connection errors are because of my Linksys because it never happens at work on the Belkin. Also, it happened on my SGS2 and a friend's touchpad when he came over. I might shell out a few bucks and try a different router to see if it makes a difference as it is quite annoying
[Galaxy S III Q&A, (US Carriers)] jasonziter:
Okay. N or G.......second. i had thos problem before. Try wifi analyzer from the market. It will tell you the best channel for your router to be set on. If you have several wifi devices (router/ps3/xbox/wifes phone/tablet) they can cause interferance. Try wpa personal with a key you set. Also I turned my wifi to always on / never sleep in wifi settings by hitting menu in the wifi settings menu. my battery life is fine (12+hours mod use). Im just judicious with turning off and on the wifi on the task bar / using my nfc tabs of course :). Also remember if your band (n or g) is set to auto on the routet and a G device accesses it while you are connected with your phone on N....this could cause a problem (at least on my dlink gamerslounge router)
[Galaxy S III Q&A, (US Carriers)] WA_Bob:
Carrier: AT&T - US Version

Memory Capacity: 16GB

Rooted? Yes

If so, which ROM: Stock

Network Type: 2.4GHz(b/g/n), 5GHz(a/n) - Both

Network Security Type: WEP

Security Encryption: Automatic

Are there multiple networks near you?: Nope - At home

Issues you are having: Won't reconnect when it's turned off - I have to erase the connection for it and re-establish it. When the data connection turns off, the WiFi looses connection and takes a good 20 seconds to reestablish itself after I power it up again. :confused:
[Galaxy S III Q&A, (US Carriers)] colemac:
The issue that I am having with my wifi is the level of bars us much lower then my phone therefore intermittent disconnects.

Anyone else having this issue with a Telus S3?
[Galaxy S III Q&A, (US Carriers)] ewingr:
&(*&(*&)(*^^^^

:crying:

It appears that getting a new phone did NOT help. I don't want to, but I may give up on the SGS III.

Appreciate the offers, but:

Have analyzer, and changing channels doesn't help.

I am using WPA personal with a key I set.

Mine is set to never sleep.

Have also set to a static address.

I don't have anything hooking to mine as G.

Sigh...

I have not tried the suggestion earlier about deleting the G/N, and setting to N. I have no idea how to do that. Don't see any such settings in my phone.
[Galaxy S III Q&A, (US Carriers)] the1stSecond:
I believe it would be a setting in your router. As in set your access point to broadcast only n.

But, I am right there with you. These bugs are getting ridiculous. My replacement gets here tomorrow. Hope it is much less buggy all around.
[Galaxy S III Q&A, (US Carriers)] ewingr:
Ah, yes. Of course. I'll give it a try.

Interesting (possible) development for me: I found on this new phone that I made an error on my Tasker setup. So, maybe, just maybe, this phone may be OK. It has been an hour and half since fixing that error, and no drops. [FINGERS-CROSSED]

If I find it drops overnight, or later, I'll try setting my router to just N and see what happens. And if that doesn't work, I'll try just G.

Regarding bugs, this is the only bug I'm aware of...really liking the phone except for this issue.

But given that it seems we aren't seeing a larger number of people complaining about this (relative to the number of phones out there), maybe it is a small subset of phones, and exchanging will fix it for us. Tomorrow will tell more from my perspective.
[Galaxy S III Q&A, (US Carriers)] stan.s:
a TRY for Linksys 610, E3000, 4200

fwiw, I'm beta testing some OEM hardware and as a part of that, had to change my 610v2 from "N" only on both bands to G/N on the 2.4Ghz band. While the phone was unstable on the "N" only 2.4Ghz, it's very stable at G/N setting. The phone is connecting at 72mbps which is not what I want (I want 150 all the time since I have 50/8 service from my ISP) but I'll take 72 right now.
[Galaxy S III Q&A, (US Carriers)] ewingr:
I'm curious...how are you determining the speed of your connection?

Positive over-night for WiFi

My new phone went all night w/o disconnects. We'll see how it goes today.
[Galaxy S III Q&A, (US Carriers)] stan.s:
The LINK speed is shown by the phone by a tap on the WiFi settings page to the network you're connected to. Or if you want more detail you can use the *#0011# wifi settings page.

I test download speeds with Speedtest.net's app connected to my ISP's server.
[Galaxy S III Q&A, (US Carriers)] nitra:
Keep in mind, most people don't understand, your wifi will only be as fast as your slowest device connected.
[Galaxy S III Q&A, (US Carriers)] ewingr:
Really? Interesting. So if there is one device running on G, then N devices will also onlly get G. I didn't realize that.

I just checked, and my speed is 13Mbps. :(
[Galaxy S III Q&A, (US Carriers)] stan.s:
absolutely, however, now except for the 3 stream devices which can do 40mhz wide, everything can do the same speeds (though the device I'm testing doesn't do any 5Ghz DFS channels ;-(. I only had a G network for my old X10a phone.

---------- Post added at 10:21 AM ---------- Previous post was at 10:15 AM ----------

This is the reason that I run 3 different wifi networks. I was running a G only for my old phone (and guests), plus a "N" only 20mhz wide 2.4 and a 40mHz wide "N"only 5Ghz for my laptops, Touchpad, blue ray player and. WDLive!
[Galaxy S III Q&A, (US Carriers)] ewingr:
I just set mine to N only, and it is getting 65Mbps on the phone now. Still not what I'd hope.

I will likely have to put in another for G.
[Galaxy S III Q&A, (US Carriers)] stan.s:
http://en.wikipedia.org/wiki/IEEE_802.11n-2009#Data_rates
[Galaxy S III Q&A, (US Carriers)] skiddingus:
Carrier: Verizon

Memory Capacity: (16GB/32GB) 32GB

Rooted? (Yes/No) No

If so, which ROM:

Network Type: g

Network Security Type: WEP

Security Encryption: Shared key

Are there multiple networks near you? distant but yes

Issues you are having: Occasional dropped wifi connection. Sometimes immediately after a phone call. Must reenter password to reconnect otherwise it will never reconnect once dropped.
[Galaxy S III Q&A, (US Carriers)] ewingr:
Not sure what to think about it. My phone is connecting at 26-65, my PC is connecting at 150.

Back on topic...so far so good...haven't dropped from WiFi today.
[Galaxy S III Q&A, (US Carriers)] the1stSecond:
Just got my new device around 1130am Eastern Time.

I put all of my settings back on my router as I would normally have it (as my original post page 1).

So far no drops.

Side note: at least one of the other bugs I was having (getting communication error when checking for updates) is not present on this new device.