I have the same problem with my Nuki 2.0. Nuki v1 could open my door without any problems, but with Nuki v2 I have to pull my door while Nuki turns the key so that It needs lees force to open my door. Alternatively I need to submit an open door command 3-5 times…eventually Nuki opens my door correctly.
I tried to detect a schema when it works on the 2nd or 3th attempt, and when I have to try 5 or even more times. Without success. I even changed my new batteries, that didn’t help either. Software version is 2.4.5 and I’ve turned off the lock optimization.
Strange, I had no problems with my old Nuki 1… Any Ideas?