New Nighthawk AX8 Activation Loop - Stuck on Blinking Upstream

I am installing a customer-owned Netgear Nighthawk combo. The downstream light is solid white, but the upstream light is blinking. Phone support keeps reading a script to send a physical technician out, but the cable line is alive, I need a Tier 2 / Digital Care agent to look at my account profile and manually provision my CM MAC address