Recently, within the last few weeks, we upgraded our internet to the Gigibit Xfinity system. Comcast sent us a new modem that is supposed to handle it. Since then we have had NOTHING but trouble!
Anyone else seeing this and have a solution? We don't want to, but we are talking about shopping around for something more reliable!
Without more specific details, it sounds like either a signal issue or a provisioning issue. If the coax cable is old and has splitters and other issues, that could very well be the issue. Either way, I would ask for a tech to come out ASAP.
What I don't understand is how you turned up gigabit service. Was it ever working? When I got mine turned up in January, they required a tech to come out and even though my drop from the street was fine, he said it was mandatory to replace. And then he checked the signal to the modem and provisioned it and made sure it was getting the provisioned speed.