I've tried searching the internet and the forums to find the answer to this problem, but I can't come up with anything.

When I'm on my home network (WRT54G with DD-WRT) on my netbook (Ubuntu 10.04) the entire wifi network will go down (every device connected wirelessly drops its connection) in what seems a download dependent manner. For example, when I'm just browsing the web it takes a while but when I start streaming video it usually goes out in about 2-3 minutes. I've tried to get the same thing to happen with my wife's MacBook, but I can never get the network to go down. I also just got a Boxee Box that's connected via wifi (until my 50ft ethernet cable gets here from newegg) and that won't take the network down. It seems to only be my netbook and I can't figure out why.

Having no idea where to start, I'll post the out put of iwconfig.

lo no wireless extensions.

eth0 no wireless extensions.

wlan0 IEEE 802.11bg ESSID:"CHEW"
Mode:Managed Frequency:2.412 GHz Access Point: 00:40:10:10:00:03
Bit Rate=54 Mb/s Tx-Power=20 dBm
Retry long limit:7 RTS thrff Fragment thrff
Power Managementff
Link Quality=58/70 Signal level=-52 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
Thanks for the help everyone.