My Iphone Wi-fi does not work. I've tried almost everything...

is the wifi toggle greyed out?

in some instances it could be a bug from the firmware installation. let me check some of the documents I have since I work as apples technical support

might be a problem with your actual wifi. Try resetting the router because in some cases that could be the problem, not the phone.

I have the same problem. I have a iPhone 4S running OS 5.1.1 on ATT. I too have reset network settings to no avail.

It says it can't scan for wireless networks-it doesn't see any networks, not just my wifi network at home. The 4G data works though. The thing is, I haven't upgraded or downgraded firmware recently-it just stopped working. When I go on the wifi networks page in settings and it shows "WIFI" - ON, "Choose a Network" - spinning wheel of death, "Ask to Join Networks" - ON. All the other computers, including an iPod touch can go on my home WIFI network without issue.

Its clearly not a problem with the airport extreme 2009 802.11N that I have running my network because my Macbook Pro, Powerbook G4, my iPod Touch 2nd Gen, and 2 apple TVs all connect just fine to the WIFI network.

The iPhone 4S also cannot connect to any other WIFI network, anywhere. No networks even show up in its list.

Since it has to be a problem with the iPhone 4S, and a reset doesn't fix the issue, what else could I do to fix it?

Thanks for your help.

Also, bluetooth is not working. I discovered on other forum support discussions that there may be an issue with the latest OS update. Does anyone have a work around until Apple fixes the problem?

Hello,

I am facing the same problem since yesterday. I have a factory unlocked iPhone4S from the US, and it was working just fine until last Sunday. However, since yesterday the phone neither connects to my WIFI nor detect any bluetooth devices (which were even paired earlier!!!). I tried "Reset all my settings" and it worked fine for another day. But now, back to the same problem.

As I can see many of us facing the same problem, is it something to do with the updates of OS? and we all misinterpret with the Hardware?

Anyone from APPLE have something to say here??? It is really annoying to have a "Handicapped" phone like this!!! I am proud owner of other APPLE products as well, and still think APPLE should fix by releasing a patch or something...!!!

Thanks,

Badri.

Same thing happened to me and now I since it doesn't work and I've formatted the phone, I can't even activate it through wi-fi anymore. It just become a useless piece of junk.

I'm having exactly the same problem. The wifi stopped working on my IPhone 4s about a week ago. I've tried network reset and general re set but the problem remains. It's does not recognise any wi fi networks. It is not a problem with my router as it does not recognise any routers or public wi fi networks. This is obviously a fairly wide spread problem, my phone is only 4 months old and I would not expect this to happen. Could someone from Apple please respond and let me know what to do? Shall I return it to the apple store as its still under warrenty.

There are thousands of us with the same problem. Mine cannot search for wi-fi either and I have done every reset , power off, and restore possible. I've decided to just wait for the next release as the tech geeks want to ignore the real problem and talk to us as if we are all idiots. I especially love the "is the Wi-fi toggle turned off" response or the "it could be a problem with your router".

Dear all friends

I have the SAME SAME and SAME problem as you all :-(A few days ago, when I surfed the ineternet, did iCloud backup, my iphone 4s (ios 5.1.1) wifi just freezed. Then I restarted my iphone and it worked again. It happened a few times. Then yesterday my iphone wifi just stopped working, when I turn the wifi on, it acted as it's searching but never found a single network. So I go to 'Other' and tried to manually join the network but it said 'Could not scan for wireless netwroks.' I have tried all: reset network, reset content and network, restore the phone, turn on and off, ... but no miracle happened!

I wonder is it a software (iOS) or hardware problem? Anyway I bought my iPhone 4s (factory unlocked) about 5 monthes ago in my home country Cambodia and now I'm in the US for my grad study.

Thank and hope we could find the excat problem and solution soon :-(

I HAVE FOUND A FIX FOR THIS PROBLEM AND HOPE IT WORKS FOR ALL OF YOU

fix wifi for iphone 4s running on ios 5.1.1(USING WINDOWS COMPUTER)

STEP 1 : CREATE AN AD-HOC NETWORK IN YOUR COMPUTER... GO TO THIS LINK http://windows.microsoft.com/en-US/windows-vista/Set-up-a-computer-to-computer-a d-hoc-network

STEP 2: ASSIGN A NAME AND MARK SECURITY AS NONE ,BECAUSE WE NEED A OPEN AD-HOC NETWORK

STEP 3: SWITCH ON WIFI IN YOUR IPHONE 4S(i dont know if this works for iphone 4/3gs/3g)

STEP 4: TAP ON OTHER

STEP 5 :TYPE THE NAME OF THE AD HOC NETWORK WHICH YOU ASSIGNED AND CLICK CONNECT

STEP 6: IT WILL SHOW FAILED TO JOIN AT THE TOP,OR SOMETIMES IT WILL SHOW FAILED TO JOIN THE NETWORK (name)

STEP 7: REPEAT THIS STEP TWO TO THREE TIMES AND TO THREE TIMES AND YOU SHOULD SEE THAT YOU ARE CONNECTED TO YOUR AD HOC NETWORK

STEP 8 : AFTER THIS DISCONNECT AD HOC NETWORK FROM YOUR WINDOWS COMPUTER AND THEN SCAN FOR OTHER NETWORKS ON YOUR IPHONE 4S .......VOLA!!!!!...ALL NETWORKS NOW POP UP...!!!