Can't register my Ubolt Wifi lock

[Van_Loo]

Hi,
My app doesn’t seem to be able to find my Ubolt Wifi lock. Its my second lock of the kind, the other one I was able to register. What could be the issue?
Thanks for your suggestions!
![2F83C4A6-E0C8-403C-A405-A4DC4975BA50|231x500](upload://dw

PYv2OdMRQ7AqOZ2dEOpyIEvsP.png)