Xfinity Router Keeps disconnecting and rebooting at random times

The router keeps disconnecting and rebooting at random times. Sometimes I will be in the middle of a key call or taking a test and it disconnects, and connects. The AI agent and routine trouble shooting like rebooting the router etc. are fine. There are no outages. The connection is stable for many hours but suddenly drops after hours of stability. Everyday I have seen it drop at least 3 to 4 times. How can I have someone check it and not the usual AI reboots? Or is it the router is now old and I need to replace?