wifi connects but ie give network error

[buck95]

ROM version 3.60.70 WWE; radio version1.41.00; ExROM 3.14.208 WWE; PRI version 1.12_002

I've had no problems connecting at home on my home wifi secured network, but this weekend stayed at a hotel with unsecured wifi.
Phone had no problems connecting to their network (showed it connected) but IE would not work, kept getting a message "network problem check with the network administrator " or something like that. Laptop connected fine and set my phone the same.
Neither would the htc weather update. Also checked it out at the mall and had the same problems on other unsecured networks. First time ive tired wifi out of the house since the rom update, didnt have the problem before. Any Ideas? Anyone else haveing this problem showing connected but network errors? What am i missing?

Thanks guys