WUSB11 v2.6 drops offline after a few minutes

Good evening. I have a TIVO DVR Series2 software version 8.3-01-2-649 and a linksys WUSB11 v2.6, and a belkin router. I can connect to my home network and download ok... but after a few minutes of inactivity, it drops off the network. All I have to do is unplug the usb cable to the linksys wusb11 and it reacquires the network and will stay online for several minutes until it drops off again. The signal strength is 95% usually 95% and theres about 30 feet between the router and the receiver (with nothing between). I've set the IP address to be static. Any ideas on what's causing the drop off... seems to be getting booted off for inactivity...

Thank you,
Jeff