Nope he's not using a Torrent Software... anyways i tried the public DNS, and problem persist, my last try is router... but its always when he turns on his Mac... right now here's not @ home, and im using internet very well... once he comes, it drains all the internet and i stay with nothing. Last thing i tried was connecting all Wireless PCs direct to the Modem... and leaving only my PC to the Router...Btw i already re-installed windows again >< Thx for answering ppl.