[Arigoto]

Also, it could be your modem. I don't know which ISP you have, but you should ask for a replacement modem, I've had that problem. Also, if it is your modem, then you can probably just unplug the wire from your modem, unplug the power from it, insert the wire again, and power it back up. If either don't work, you have one f*ked up comp, my friend.