said by khami :
I have swapped out wireless routers and directly connected to my modem and it still happens.
Based on this comment, I think you're probably in the wrong place. There are a number of forums here, and this one is specific to wireless issues. I'm moving this to Cable Users where I think you'll get the best help.
I suggest you post your modem log (without your MAC address) and the modem signal levels for the upstream and downstream channels. Those things may contain important clues.