I just got my internet service back and since i did im having a connectivity problem. The internet will work fine for x amount of time then i will lose connection, my modem will lose all lights but the power and when i have static ip set it will erase my default gateway completely but leave the ip and subnet mask unchanged.
ive tried /release and renew and it didnt help the issue. i went and got a new modem and ethernet cable and it worked fine for about 2 hours and it started happening again. Starting to get frustrated please help!
Have had a similar problem at work with this. It sounds like the default gateway or "router" is not defined within the DHCP scope. Do you have a router or only a modem? I'm not sure how comcast works but it may be something that you need them to define on their end. If you do have a router there should be DHCP options in there and you would need to put the IP address of your router as the default gateway.