Two Doorbells, two device failures

Ordered a "refurb" Ring Doorbell Pro a week ago (though Amazon). Installation was a breeze. Powered by the Ring Doorbell Power adapter. It worked great or two days and then suddenly lost connection to wi-fi.Attempts to reconnect failed. It would be stuck at a pulsing white ring. Tried a RESET a few times, and in the few times when the "setup circling light" worked, it failed to connect to the ring app.Exchanged with Amazon and they sent me another "refurb" unit. Again, setup was a breeze and it worked super... for about 24 hours.. and now the exact same problems.Even removed it and plugged in USB from the side and it GETS to setup mode, but will not set up.Had I not already purchased a ring Camera (and extra battery), a Ring chime, and the ring power supply, I'd be running away to another brand, but now I'm invested.Has anyone ELSE had these problems with the Ring Doorbell Pro?Gregory