Report Router Disconnect Help in Windows 10, 8, 7, Vista, and XP Posted April 21, 2009 A Comcast tech came, and they said that it was the actual modem's problem (something about the firmware not being upgraded or something). So he switched out the modem. So far everything has been running alright. I haven't had to restart the router, however, there are periods of about 1 or 2 minutes when the internet just seems like it stops, and then it works again. Its weird. Do you have any ideas?