I have a BT 1800HG wireless hub and connect two laptops both with BT1060 wireless adapters.
The connections are WEP protected and the network authentiaction is 'open'
The first pc works fine. However the second pc can connect to the internet but can't access secure sites such as firstdirect.com. ebay login, flickr log in and windows updates.
I messed around with the second pc (following various forum cribs and in the end removed and reinstalled hardware and drivers. This cured the problem. However, the first pc has stopped getting access to various sites - although it does have full access if I connect to a wired broadband modem.
I tried a third laptop today - no firewall or virus software - so clean as a whistle. Still not joy .
It seems as if the hub will only allow one full connection to the internet and resticts a second or third connection to unsecure sites.