I witnessed this behavior once today on a 4.0.x device, but could not replicate it once trying again. On a 3.1.x device and the 4.0.x device they were both able to connect to through the portal after entering the credentials once. I did notice a quick switch between 3G and the wifi after credentials were passed.
Is anyone having problems with auto-join or the auto-login feature working? I cannot get it to work for my network so that users can pass their credentials once and leave auto join on afterwards.
There were problems with 3.0 where a redirect was used for
www.apple.com/library/test/success.html to a local copy of the page, but I don't think that applies in this situation. Does auto-join work for anyone?
Thanks