Okay, so I have two laptops, which are both using the same internet. For one of my computers, it runs at about 250-300 kbps, which is fantastic, but on the other computer, 50% of the time it's running under 10 kbps, rendering it practically unusable. (the other 50% of the time it runs at about 50-250 kbps) I have norton 360 on both computers, and I regularly do disk cleanups and disk defragmentings.

Does anyone know why this is happening, or how I can fix it? Thanks!