help! wireless connection loss every couple of days.

I have to power recycle the router/modem once every couple of days, otherwise my 2 laptop can't be connected and says unidentified network. My desktop PC has no such issue.

I changed the "DHCP Lease Time" to a big number and it did'nt help. I also replaced my 2.4GHz phone with DEC6.0 (1.9GHz) phone, and it didn't help either.

Anyone had similar issues before? My router is Dlink wbr1310 and ISP is comcast.

Thanks a lot.