I have heard of a few people having this issue on the forums matey have a looky
here >>>
http://www.cableforum.co.uk/board/sh...ad.php?t=14503
Just a rookies point of view but seems little similar
I also get this time to time if on p2p systems, i just reboot computer could be something to do with hammering upload/download to much
seems this is spreading area to area im sure a more techincal minded person should give you more information but check above thread out