Yesterday I did a windows update which installed/activated Windows XP SP2 security center.
The first time, the internet connection said it would be limited because my IP address was no longer recognized. I rebooted, and now I can no longer connect at all. (error 769; destination unreachable)
I tried adding new programs to the exceptions list, as suggested, but nothing happened. I turned off the firewall, virus protection and live updates, but still nothing. I guess what my question is, is wtf...