CAX30 AX2700 SYNC Timing Synchronization failure

Hello,

I recently signed up for Xfinity gigabit internet using my own modem, a Netgear CAX30 AX2700 modem/router combo.

A few days after installation, I noticed a significant speed drop down to 200 Mbps from my usual 900 Mbps-1Gbps over wifi 6. Soft rebooting the modem/router would restore gigabit speeds for a few minutes, then the speed would drop back down to 200 Mbps. I performed a factory reset and this seemed to solve things for a few days, but lately I've been getting similar drops in speed (this time down to 50 Mbps). Again, factory resetting seems to resolve the issue for a few days, but I am anticipating speeds will drop again in a few days.

These drops coincide with the following events in the modem log:

SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing

I also seem to be getting these notices in the event log every few minutes:

CM-STATUS message sent. Event Type Code: 24

CM-STATUS message sent. Event Type Code: 16

Any idea on what the issue might be?