I have a Linksys WRK54G router contacted to a Motorola SB5120 Surfbroad cable modem, 2 wired pc's both running win2000pro and 1 wireless laptop with winXPpro. My problem is after a few hours of inactivity I am unable to contact to the internet or check email with outlook express. I restart the computers and power-down and restart the router and modem and everything works fine. Is this a common problem? Is there a way to stop it from happening?