OWA cannot get to Inbox using Cable connection

[kfons]

We are using OWA, Exchange 5.5 sp4 and a netscreen firewall, My laptop is XP Pro. Friday we installed an update to our firewall to try to block some attacks we were getting. Since then I have not been able to login to my mailbox remotely via my cable connection. Other users with the same provider have no issues and I cann access it using a dilaup connection.
I get through the firewall, enter my domain/username and password. The status bar shows Opening Page root.asp 192.168.0.134 .... , I get 5 progress bars and that's it.
I am also able to login to our network and get to the servers to get files but I cannot get to the e-mail OWA.
Any ideas?

Kevin

 

[kfons]

One more note - I am the only one using XP pro at work, everyone else is on 2000 pro and they have been able to access their e-mail via Charter.net.