Older firmware (pre-6801.9.2.0) had a memory leak when handling high OFDM traffic.
Standard customer service agents rarely have the tools to push firmware. Request escalation to a higher-tier technical support agent or a network engineer. Ask them to verify the "modem bootfile" and check if a newer or rolled-back firmware version can be manually provisioned to your MAC address. Frequently Asked Questions Can I flash open-source firmware like DD-WRT to the MB8611? motorola mb8611 firmware
Many users have reported stability issues where the modem constantly reboots while trying to update. mb8611 firmware - Xfinity Community Forum 1 Dec 2022 — Older firmware (pre-6801
The Motorola MB8611 is a DOCSIS 3.1 cable modem designed to deliver multi-gigabit internet speeds. Its key hardware feature is a single 2.5 Gbps Ethernet port, allowing it to fully utilize internet plans beyond the standard 1 Gbps limit. Ask them to verify the "modem bootfile" and
Firmware Impact: Low SNR means heavy line noise, which causes the firmware's error-correction algorithms to overload the internal processor. 6. Frequently Asked Questions