Brand New WyzeCams Won't Connect

Took my 4 brand new WyzeCams out of their boxes today and tried to connect them to the Wyze app on my Android via my home 5G network. Every single one of them fails to connect and gives the “Failed to Connect” error message. I’ve tried power cycling and it didn’t seem to help. What gives?

They only work on 2.4G wifi.

Oops.