I had similar issues, such as everyone seeing my video and voice pause several times in Zoom meetings. Looking at modem stats, I could see that only kne of four

I had similar issues, such as everyone seeing my video and voice pause several times in Zoom meetings. Looking at modem stats, I could see that only kne of four upstream channels bonded, resulting in a tenuous connection. Ironically, the TV also didn't work well since each ca STB remote control button press requires a round trip to the server over IP. The result was that I'd be watching something and a non dismissable popup would cover the content to tell me there was an issue. In any case, the only way I got them to stop telling me it was an inside wiring problem was to run an extension cord to the interface on the outside of my house where the wire from the street was connected to my home wiring and then connect my modem directly there. When they finally agreed to send someone, I was told it would be 7 business days. Fios was able to install the next day, so I switched.