Q: iPad 3  iOS 6 Wifi over TKIP not working

Wow...

First I need to make a correction, my 4S was the only iOS device at my house that was not affected by this issue. Anyway I seem to have fixed it for my network. I changed the passwords on both my 2G and 5G wireless at the router, forgot the networks on all of the iDevices, and then re-added the networks with the new passwords.

The iPad is good, (I re-did my 4S just to be on the safe side), and my wife's 4S is OK. When I wake hers from sleep it shows the circle for the network and then changes to the WiFi after about a second. I tried to reset the network setting on her phone and reconnecting but there was no change for that. I am hoping that when they push their fix it will correct that as well.

I know that others have suggested these steps and so I hope that they will work for others.

Good luck!

I have the same error with my iPad3

Cannot join my Wi-Fi network, after providing the password i get the error message "unable to join the network"

My iPhone 4 btw works fine.

I traced the error down to a wrong config question from the iPad to my Wi-Fi router. The router writes in the Wi-Fi error log:

Cannot support all requested capabilities in Capability Information field

I had this same problem on my ipad and my iphone. Solved it by forgetting the network.

Hope this helps

Turn off iTunes Match. If it was already off, turn it on and back off again.

I solved the problem by going to Settings...General...Profile and delete any unfamiliar profile. If not sure, delete all profiles.

Is it

Hesti -- Seems like we have the same issue.

It looks like iOS 6 added something to what the iPad is sending when it requests Network authorisation, and whatever has been added (I'm going to guess something related to IPv6) is not supported by our routers. This may be why my school's network infrastructure went off without a hitch--it's newer than my router (our building was just remodeled and updated with a network).

Strangely, this is particular to the iPad (or, perhaps, the iPad3). My iPhone4 works just fine.

This happened to as well on the 4S. You will need to go to Settings -> General -> Reset -> Reset Network Settings

This solution resolved the issue not connecting to the WIFI

I had the same issue. Make sure that the"ask to button" is turned on.  After I turn this own the wifi stayed on. 

Sorry the "ask to join" button is turned on.

Is happening on all iPad's or just WiFi and 3G?  Maybe try connecting while on airplane mode and have WiFi only turned on. Also, this is a long shot, but turn off all security and pop ups in the safari options.

I have an iPad and iPhone 4, just updated to iOS 6. Experienced the wifi. Problem on both.

The solution I found was to delete the DNS entries corresponding to each device on my router, not the wifi access point.

I have a Verizon supplied broadband modem/router, in the advanced settings there Is a DNS server selection which provides a list of device name and associated ( local net) IP address. I deleted the iPhone and iPad entries.

Next start. Of the device wifi worked.

If you guys get that "Log In" screen after trying to connect to WIFI. Try clicking on one of the link you see on that page. It will turn the top right button from "Cancel" to "Done". Hit "Done" and your problem should be fixed. You should be connected to WIFI.

My experience was that last night with IOS6 on my iPad3, for an hour, wifi disconnected spontaneously after less than 30 seconds... but eventually everything stabilised and it settled down to a relaible stable connection!