Router connection to internet drops constantly

Internet connection has been dropping continuously for the last 10 days.   Xfinity outage map showed an outage at my home but no where else in my area.

Tried multiple recommendations to resolve the issue. Went to Verizon store last Monday and received a replacement shrink-wrapped (not in a box as expected) Xfinity WiFi gateway.  Scheduled a service Technician visit at the same time.  Service Technician spent a time checking everything and didn’t find any issues that might be causing the problems.

Service continues to drop.  The only way I can connect is to power off and wait for hours!

I see so many other posts with this same type of issue.

Please investigate and resolve asap!!!