One camera drops off, then another, others ok. Base station cannot find dropped cameras.

[loopmeister]

One of four Arlo Wire-Free cameras lost connection and cannot be found by the base station for re-pairing.  Days later, a second camera lost connection & could not be found.   I asked a friend to try to pair to his Arlo base in his home...  

No success, but when I returned & tried on my system again, both cameras paired quickly, have stayed connected & have worked properly for two days now.  Apparently, our attempt to pair to a different base reset "something" that fixed the problem.