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Total Outage After Storm - Motorola MB8600 Stuck on Blinking Upstream / 0 Bonded Channels (BPI+ Failure)
My Xfinity service dropped completely during heavy storms yesterday. While automated customer service states there is no widespread neighborhood outage, my individual home line appears to be completely dead.
My customer-owned Motorola MB8600 modem is powered on and stuck in a startup loop with a solid green downstream light and a continually blinking green upstream light.
I have accessed the local modem diagnostic page at 192.168.100.1, and the connection logs show the following critical failures:
- Acquire DS Channel: Locked (at 507 MHz)
- Upstream Connection: Stuck "In Progress / Parameters Acquired"
- Security: Failed BPI+
- Bonded Channels Table: Reads completely blank with 0 QAM / 0 OFDM channels connected for both downstream and upstream data.
Troubleshooting already completed:
- Confirmed there are NO splitters on the coaxial line; the cable runs straight from the wall to the modem.
- Power-cycled both the modem and router multiple times.
- Performed a full 30-second physical pinhole factory reset on the modem. The device reboots normally but goes right back to the exact same blinking upstream behavior with 0 bonded channels.
Because the modem functions perfectly internally but cannot establish a return path to the CMTS, this is a clear case of individual line drop damage, a flooded line, or a fried port on the utility pole tap caused by the storm.
My local dispatch is booked out for days. I would like an official Xfinity Forum Employee to please escalate this ticket to a regional field line technician to investigate the physical drop line outside my house. Thank you.
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