I have a 4 channel router connected to a cable modem. My home computer will not get an IP address from it. Another computer hooked up to it connects just fine and connects to the internet. My home computer has an entry in the event log when it is started that says the DHCP service won't load or initialize. I have had a virus on the computer when this occurred. The virus is gone but I still can't get a valid IP address from the router so I can get on the Internet. Everything else on the computer seems OK. I can manually enter a TCP/IP address on the computer and talk through the router to the other computer so the hardware appears to be working.