I still get this problem around twice a week, ever since I made this thread. It's VERY VERY annoying and only happens with my computer out of the three in the house. So I know it can't be the ISP. I've tried changing around ports in my router and that doesn't help. This problem only lasts for about a day, and then it "magically" stops.
Once again, I'll list the problems:
Cannot connect to game servers
Will not submit log-ins (to some forums, Chase online, Paypal, Gmail, etc.)
Cannot connect to update servers
Cannot download torrents
Those are the major problems that I run across when this problem happens. Someone HAS to know what's going on. Restarting my computer does nothing, restarting the modem/router does nothing (although it works sometimes), re-installing windows does nothing, unplugging and plugging back in the Ethernet cable from the back of my computer does nothing. I've seriously tried everything to my knowledge to try and get this problem permanently fixed.