I have three residences equipped with WYZE cameras. Why do all the ones in the residence I’m in now show up on my iPhone as “offline” even AFTER REBOOTING THE IPHONE. Yes, my internet works. I’m using it to send this message.
A friend in another location is seeing the same thing with these cameras.
My first guess is that the 2.4 GHz WiFi has failed or is being interferred with whereas the 5 GHz that your phone is using is working fine.
The Wyze cameras only use 2.4 GHz. Your phone is almost certainly using 5 GHz.
Rebooting the iPhone almost certainly has nothing to do with the issue. Try rebooting your Wifi access point - see if that helps.