The Nr Fairy,
You are correct. I miss read it. (Thought he could get Messenger but not HTTP/HTTPS.)
In that case in IE, go Tools >> Internet Options >> Connections >> LAN Settings
And make use there is a checkmark in Automatically Detect Settings.
If that does not do it, under Network Connections, make sure the Wireless NIC does not have the Internet Connection Firewall checkmarked.
Take Care,
Richard