Identifying Wi-Fi issues and replacements

For the last few months, my 5 year old Asus RT-AC68U wi-fi router has been dropping connections. I tried adjusting management channel, checked for local interference in the house or with other wi-fi networks, and eventually did some signal checks with NetSpot running on the Windows 10 laptop. From looking at the NetSpot graphs above for both 2.4GHz and 5GHz, it looks like that the whole signal was dropping off a cliff increasingly often, leaving pages not loading and in some cases devices being disconnected....

2020-08-05