Weird thing to try but this helped another person who could not connect when outside of the home and apparently could affect internal as well. A community member recommended to turn off IPV6, so if you have it on, try turning it off. It seems that Wyze uses IPV4, so it could be related depending on where your phone is connected. I have always disabled IPV6 and have not experienced any connection issue when setting up devices.
Not sure if it will help, but is something relatively easy to try.
I tried calling them numerous times during business hours and always got an automated message saying to call back during business hours, maybe a glitch ¯_(ツ)_/¯
Yea - same Phone number I assume. I posted a question to a couple of Community members to see what they say as well. Will see what they can find as well.
Out of curiosity did you turn off the Orbi satellites as well during all this? In my case I went through all the steps as well to trick it into connecting to 2.4 but read that turning off all the Orbi satellites cleared up the connection route and worked for me.