CM1000 Connection Drops

I've seen a few other posts with similar issues but I believe the log messages I'm seeing on my modem are different so I'm starting a new post.

For months, I've been having intermittent connection drops to my Xfinity/Comcast 400Mb service.

It usually comes back within 2-10 minutes on its own. Sometimes it requires a full modem and router reboot.

There are no splitters in the coax path but there is a grounded, passive filter inline.

I've been working with the router manufacturer for some time and they cannot find anything to indicate it's the router's fault.

Comcast's diagnostics do not report any signal integrity issues to the modem when running their remote diagnostics.

The most recent disconnect was just before 1AM this morning and I've attached the log.

Is there anything in these logs or connection stats which should be of concern?

The concerning part to me is that the up time matches the time of the disconnect which means the modem rebooted.