Little background: before going on a business trip I installed all the corporate updates on my winxp laptop (not a great idea). One of them included a new vpn client which might have something to do with the problem.
Anyway, I quickly noticed that I'm having problem with my internet connection i.e. sometimes it looks like I completely lost connection - no websites can be opened (even though I can ping them). This weird behavior can be observed pretty clearly using Putty (ssh). After exactly one minute of being idle I'm losing my connection (when sometime after a minute I type enter I get 'connection reset'). I can get around this in putty by sending keepalives every 55 seconds but it seems like it's connected with my problem browsing websites.
The strange part is that this behavior can only be observed when I'm using a wired connection. When I'm wireless everything is fine and dandy. I'm guessing it's a matter of setting somewhere one parameter, either in windows registry or NIC setting.
Could anyone please help me with this? I'm far away from my office and besides knowing the support desk guys they will reinstall my OS :-(