That does not work on network/enterprise wifi (like work). My iPhone 4 works fine on my home wifi but will not hold a connection at work. Autojoin works for a bit and then resets itself, deselecting auto-join and forcing you to rejoin the network with user name and password. I see that LOTS of other people are having this same problem.
This is what worked for our phones and iPad which we stupidly upgraded to iOS6.
There are various problems but the ones we were suffering at home, where we have 3 WiFi networks fixed the problems of "Incorrect Password" when you know the password is right and "Cannot connect to..." error.
The Incorrect password error presents with WEP security and the Cannot connect error presents on WPA/2 security.
All of our PCs and Windows phones still connected fine as did an iPod Touch with iOS5 so it was clear this was a bug in iOS6.
To fix this, all I had to do was lower the WiFi channel number on our routers. iOS6 cannot use a WiFi channel higher than 11.
I've tested this over and over again with the same results. If all I do is change the channel number on the routers from 10 to 12, the Apple devices stop working while everything else works fine. If I change the channel back to 11, 10 or 9 the iOS6 devices are immediately able to connect again.
I hope that helps some of you.
I am at a conference in Austria. The apartment owner has spent 2 hours checking all the wiring and wireless units in the building trying to work out what is wrong. Two people 2 hours. Their HTC phone works, their PC works, my iphone 4s with ios6 does not (except for a couple of seconds)!!!!!!!! Then we searched on google to find all this crap.
Why hasn't apple fixed this after all this time!!!!!!!!
I tried many of the easy fixes in the discussion but none worked. I then just powered down the phone then powered it back up and it works perfectly now!!!!
Is there anywhere to see responses just from Apple about such problems? Having to read thousands of emails about what may or may not work is a waste of everyone's time.
Or do they just want us to pay for genius store people (who also seem problematic?)
Since the upgrade i tried everything but reaplacing my wireless router! My curent one wassn't cheap so replacing it will be my last option. I have a home network the uses the internet from the ruter (5 PCs, 8 wireless devices). I have 3 ihpnes4 using my network but only 2 of them have the wireless problem. Strange thing is that the network work! i can connect to everything on the network, for example: remote deskto or itune library, but no internet connectivity. If we knew that the iOS6 is so bugged we didden't upgraded. It suck to have a very high end gadged and not working.
I finally went into Apple the other day after printing out 5 pages of the threads from this discussion, and they said that hadn't heard of any issues! I was gobsmacked.
Anyway, they said that the only thing they could think of was an interrupted upgrade. In my case, that rang true because I was in a rush to get out of my hotel in Guatemala to a bus, so I would have taken it out of range. May I suggest you back it up and go and visit a store?
PS Hasn't it been frustrating!
To resolve this
Reset network settings
To reset your network settings, tap Settings > General, then tap Reset > Reset Network Settings.
When the device restarts, try to locate and join the Wi-Fi network again.
It worked for me!
IMPORTANT: Your network setting (like Wifi password etc) will be reset, so sure you know these before reset.
I finally had to take my iPad in to an Apple Store. They told me that they don't have a fix for the problem and would replace the iPad with a new one. The new one came with iOS 5 but they updated it in the store to iOS 6. The new iPad gave exactly the same problems with Wi-Fi dropping out. I took it back again and they gave me yet another new iPad, but this time they did not update it to iOS 6. The iPad with iOS 5 is working 100% again without any changes to my Wi-Fi router or any other setting on the iPad.
Hope you can get the same splendid service from Apple in your area.
I am now a happy man. I have got my iPad 2 (IOS6) and my friends iPhone (IOS6) back on the web after a week or two of bad or poor connectivity!
When I came home last night I realised I could connect to my neighbour's WiFi but not my own.. They had not set up any encryption.
I turned off the WPSK thing (whatever!) on my Cisco router and I was back on immediately.. I have now secured my network using MAC addresses and all is well.
There must be a bug in IOS6 re. wireless encryption..
Now going well after 25 hours! I have just told my friends with Apple devices and they are all more cheerful already.. MAC addresses may be a little obscure for some people, just look for a list of allowed devices on your router!
Dr Paul Johnson
I have upgraded both iPhone 4 and 4s with iso6 and have problem with wifi not working both phones are connected but wont load any data from web, the wifi is fine with any other phones and laptop. Not happy with apple and just about to change the iPhone 4 for an iPhone 5 but wont be doing this unless this is fixed
I have a similar issues WITH my iphone 4s and ipad 2 connectING to wifi, however it cuts off and switches to 3g all the time or just looses connection to wifi. I have tried all sorts of solutions reset wifi , turned it on off , reset network settings, turn http proxy on and off, cleared history and cookies and finally reset router nothing is solving the issue. I FEEL REALLY LET DOWN BY APPLE AND MY APPLE PRODUCTS ARE USELESS WITHOUT WIFI THEY MAY AS WELL GO IN THE BIN. I CANT BELIEIVE APPLE HAVE RELEASED THIS UPDATE WITH SUCH A MAJOR ISSUE!
ANY SUPPORT WELCOME, AS IM NOT GETTING MUCH FROM APPLE?