It could be the MTU issue. this link may help,

troubleshooting ie issues Can't access some web sites Can't access some secure web pages · Can’t access the Internet via USB after enabling NIC for network Can't retrieve e-mail from ...
     www.chicagotech.net/troubleshootingie.htm  

Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net 
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com 
 hi

 new to windows- long time mac user

 new computer, hp running windows xp, explorer was able to go to "login"
 sites such as online banking.  now whenever i go to a "https" location, the
 page cannot be displayed.  i already set my internet options to
 "automatically detect" LAN settings and it did not work.  I also selected
 SSL2.0 and SSL3.0 in advanced internet options.  no luck.  please help,
 someone!

 rich