Initially, the device did not work when Comcast and I connected it, I had to wait 1 day and a couple of hours for Comcast to troubleshoot before the device started working. Speed is good but sometimes fluctuates.
We were as a family having a lot of issues with distance signal strength and security until I bought this C7000x2. I tell ya it’s a better home network versus paying monthly for equipment that doesn’t work well.