iOS 6 wifi problem

i updated my ios devices (iPad 2, iPhone 4S and my iPod touch 4gen) to ios 6.

when the update was all done it promept me to a start setup screen and wanted me to connect to wifi.

When I click on my home wifi it knew the password but open up a login screen (webpage) in apple's website and it said webpage not found.

It did the same thing on all of the devices. NO matter how I try it prompts me to the login screen for the wifi.

WHAT SHOULD I DO!!!!

PELASE HELP ME!!!!

Daniel