Not sure what's going on. for months whenever I open my utility to make sure my 3 adaptors are connected well to the "sending unit" connected to my router, I see a nice chart. I just did so today and

I love these things when they work but 2-4 times each year they randomly stop working, and I spend upwards of 1-3 hours getting them back up. I have a "base" (plugged into router via ethernet) and 3 m