I successfully upgraded to iOS 4.0 with sn0wbreeze and unlocked with ultrasn0w on my old bootrom 3gs. Now everytthing runs perfectly fine, except wifi. The issue i am having is ONLY for wifi's that require a login.
For example,
in starbucks first we should connect to wifi then load any webpage and new page automatically opens to log in to starbucks network. this page only opens the first time after i restore my phone and then never opens again. it will just say safari has no internect connection.
Now if i connect to a wifi which can directly connect to internet (like at home), it works perfectly fine.

any news on this situation?