Just to be clear, I won't guarantee that it is a router issue. The modem works with everything else I plug into it, it has values that seem to be well with range, and it isn't putting any error...

As I said above, I haven't tried email/phone support with the AC1200 since I got nowhere with support when I tried the C9. For some reason, two tickets were open for the C9: 170824-120225 and...

Model : Hardware Version : Firmware Version : ISP : Hardware is v2.0. That wasn't an option on the drop-down. ARRIS/Motorola SurfBoard SB6141 DOCSIS 3.0 Cable Modem Upstream Channel ID: 3 DOCIS MIMO...