Start by calling Comcast customer service.
Freedeb56 wrote:Rdk 10000 how do I get my box back online
Check your connections. Your modem is online, do you happen to have an amp that has become unplugged? Tech appt scheduled for 4/25
My amp is in my attic. It is plugged into a power outlet. All my coax cables are connected to it and the coax goes to each outlet in my house.