Cannot enable 2FA on ring.com with invalid/expired token error.

@HanSooloo

I am sorry to hear about the trouble with your two-factor authentication. When this occurs, it's often due to clock drift. Do you have your clock set to the correct time and date? Does it automatically update itself? If not, try enabling automatic updating. I like to use https://time.is to check my device time.

I would suggest giving your device a reboot if it has not had one lately. That can often clear up transient issues.