This app used to be fine, but I upgraded my phone to a galaxy 21 and for whatever reason, it constantly fails to be able to "establish the encryption channel". And the cameras now go offline all the time. We have changed out wifi info, made sure nothing is on a 5g network, everything troubleshooting has suggested but it doesn't work. It stinks that these cameras are suddenly useless. And it's infuriating when I can't check on my children in the middle of the night.