We have laptop users with windows Vista and IE7/Firefox who are not able
to use our unsecure wireless connection.

The laptop receives the ip address from the wireless network but when we
open browser the bordermanager login page does not come up.

Microsoft Firewall is disable,

Internet explorer TLS is desactivated and SLL v.2 + SLL v.3 are checked
and we also tried to start iexplore with -noext switch.