XB8 MocA interface flapping

Hi all. I've got a strange situation going on. 

I've got an XB8 Xfinity gateway upstairs with a WCB6200Q adapter downstairs. What's going on is intermittently the MocA interface will drop causing disconnects during real time application usage (currently primarily gaming, but also upcoming job duties could be affected). I know it's the interface because: 

1. The internet connection doesn't drop

2. MocA diagnostics shows uptime of the interface

3. Uptime of the interface does not match the unit uptime on the WCB6200Q. 

Here's the troubleshooting we've done: 

1. Hard reset the WCB6200Q using the physical reset button 

2. Replaced coax cable between the WCB6200Q and the wall

We had an Xfinity tech out who confirmed the PoE filter was in place and changed out the XB8 for a new one. This seems to have helped a bit, but the issue still happens multiple times a day. 

Here's what hasn't been done:

1. Replace the WCB6200Q

2. Replace the coax cable between the gateway and the wall

Other issues out of my control: 

1. Potential trouble with the wall jack

2. Potential trouble with inside wiring

There are no splitters in this scenario, at least none that I've installed. If there are any, it's in the inside wiring.

So I'm looking for some help. The most infuriating thing is there are no logs anywhere that might shed some light on the issue. I just see the uptime in the diagnostics on the gateway. 

Is there a compatibility issue between the gateway and my adapter? Any thoughts on what's going on and/or how to fix it? Any help would be appreciated.