A lot isn't revealed about the particular configurations used on the system, which isn't your fault, and I'm only going to provide a link for information which may provide some clues, "How to Configure a Static Client for Windows XP Internet Connection Sharing (Q309642)."
I recently re-installed Win XP and all works fine except a problem within IE. So far I have found two sites that I keep getting kicked out of. I can go to 'dslreports.com' and 'online.chase.com', log in, and select various links within those sites, but at some point when I select a link I am completely thrown out of that site and back to my desktop. I have closed my ZoneAlarm firewall and all pop-up blockers, but it still happens at the same link within those sites. So far, all other sites I visit work fine. I might add that prior to re-installing XP, I had many problems but this was not one of them. Anyone have any ideas or similar experiences?? Thanks for any help.

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