Can’t get ring pro to turn on after install

Argh, please help. Went to install my new ring pro doorbell a few weeks ago. No spinning blue lights, no ring network, Thought my transformer was old. (16v, 10a) New transformer is in, (24v, 30a) still no power to the doorbell. Multimeter shows 18volts at the ring doorbell, but it just doesn’t turn on. When I scan my QR code it tells me there is already an owner, it might be me from a few weeks ago, but I never got farther then looking for the spinning blue light that was never there. There is nothing listed under my devices in the app. If I scan the Mac id, it lets me start set up but since there is no blue light on the ring, it can’t connect. Is there a chance I got a used, broken ring pro?