Installed Wrt54gs yesterday per install instructions. All worked fine. Wireless connected to internet for a period of about 6 hours. At that point, wireless internet quit working. Could access internet through nic on my computer to router. "You are connected to the network but the internet cannot be found." I Reset modem and Router and attempted to reinstall. Wireless computer will connect to router but not to internet. Attempt to connect to internet through NIC and router works fine. "You are connected to the network but the internet cannot be found." Where to start?