iphone 4S and iOS 5.1.1 - unable to connect Wifi!

Try rebooting the router by turning it off for 15 seconds or so.

I too have the same problem. Have done what you have and more. And like you, my router is working just fine, I have other wireless devices that are working just fine, its just the apple ones that refuse to work after this update. I have a wifi signal on my phone, but it will not accept my password, even though it is correct. Good luck with this, I"m still working on mine.

I spend an hour with applecare, and fixed my phone. turn wep or whatever security you have on your wifi off. Reboot router. on phone, reset network connections, hardboot phone. Turn on wifi, make sure your phone shows no security on wifi network, ( the little lock next to your network name is gone). Then see if your phone will connect to your wifi. if it connects its fixed. This is what worked for me. Then go back to your router, enable wep or whatever security level you had, reboot router, and recheck your connection on your phone. Good luck.

Thanks for that - cured the problem on both my Ipad and Iphone. Amazing Apple missed this one!

Sorry - I meant the jlalk61 suggestion. Re-booting router (Laurence Finch) did not work.

Thanks. I will try this. Did applecarebsaynwhat is the problem? When will apple fix this? This fix is okmifnyounhave your own router but doesn't solve the problems with connecting with hotspots. Thanks again.

Also try to set the router to a fixed channel. either 1, 6 or 11. I have to have this done on my routers for my iphone to not disconnect all the time

Apple will never fix it, as it is a problem with your phone, not with all (or even a significant number) of phones. The problem that jtalk61 has was different from yours. If you cannot connect to any WiFi networks you have either scrambled settings or a failed WiFi chip. Go to Settings/General/Reset - Reset Network Settings. If that fails go to the same place and Reset All Settings. Still not working? Connect to iTunes and Restore the phone.

Thanks. You're right that my problem is different in that I can connect fine to my 802.11n network but it does not connect to the older 802.11g router or other hotspots. My problem is on iPad. I did try his fix and was ablet to connect to the older router without security but when I reinstated security the iPad lost wifi.

This is a problem across many iPads so I find it hard to believe that they will ignore the problem. This started with the iOS 5.1.1 ipgrade and not before.

If you search you will find that it happened to people with other versions than 5.1.1, to different models of iPad and to iPhones. If it connects to some routers but not others try forgetting the ones it doesn't connect to, and, if you own them, rebooting the routers.

Thanks but tried that. iPad was working fine without problems prior to upgrade to 5.1.1. My wife is running iPad 2 also but has not done upgrade yet and she can connect fine to old and new routers.

I've done the network reset too. Now I cannot access my company wifi. 😠 It is annoying since I needed to use FaceTime on my iPhone4S. Hey APPLE, you served a bucket of lemons here. Do something fast, OK?

gUYzz d besT thng u caN do is ...

i) RESTORE UA IPHONE 4S USING ITUNES

click the restore icon in itunes after syncing ua iphone 4s

back up datas optn will b der ...so no worries about the loss of datas

ii) EVEN AFTR RESTORING THE WIFI ICON IS GREYD ON UA IPHONE

settings>general>reset>reset network settings

I SOLVED MY PROBLEM IN IPHON4S

FOLLOW THIS AND SOLVE UA IPHONE ISSUEZZ TOOOO