QR Code On Ring Doorbell 2

I have a ring door bell 2. We have just had a new router because the old one broke. This has happened in the past and I have simply re-added the device. This time i needed a QR code. I have taken the doorbell off the wall no QR code. I have checked the device, no QR code. I cannot find a QR code online. Some web sites suggested bypassing the QR request, this does not seem to exists on my app. Is my working doorbell now defunct because Ring have made a change insisting on a QR code? Update. It took 2 minutes to bring my Blink back on-line.