I seem to have a similar issue and have tried numerous things to attempt to fix it. There doesn't seem to be any similar reports of it on my motherboard forums (its a eVGA 680i A1 board) so I'm not entirely sure its hardware driver related. Could anyone else who has this problem please respond? Especially if you've found a fix? I've tried this but it doesn't seem to work for me http://forums.microsoft.com/TechNet/ShowPo...2&SiteID=17 *edit* Yay they had a fix here -> http://www.xoxideforums.com/networking/763...you-server.html