URGENT - Forces auto-update to v2.7.3.22 caused corrupt NVRAM parameters

I'm suffering with the same problem, compounded by 2 satellites that routinely have problems with any updates. After taking everything apart, resetting each device sequentially, re-pairing devices -- I finally have router and both satellites on the same new firmware. Guess what? they don't work. The router will connect to one satellite for a while, then the satellite will drop off. I'll have good internet service near the main router for a while, then I will get the no internet connection error, my ring cameras will drop off, and why? who knows? Even if I follow Furry's advice, reset everything and stand on my head, it still is random as to whether anything will work properly. Past experience has demonstrated that at best this will settle down and work over a few days. At worst -- I'll be shopping for a new system, as my work depends on a stable connection. It's hard to put nto words how extraordinarily frustrating this is.