Update: ordered a new batch of fobs and they register fine, but the old batch and the ring still won't register. Possible I ruined the whole batch? Not sure how!

@jasok2 Yeah that's exactly what I did. For the tags I already had it made the regular registration noise, but when I tried to register the ring it made some kind of error noise and now none of them work. :/

I just got a ring and tried to register it with the lock, but it made an unhappy noise and now won't re-register any of the fobs that came with it, or the ring. Have had to switch it to PIN mode until I can get it working again. Any ideas?