Hello and welcome to our Forum.
You share too few details to get a clue, so here’s a couple of questions I’d like you to answer:
- Which Homey model?
- Which Nuki locks?
- Which Nuki app?
(‘Nuki’ app from Athom, or ‘Nuki Direct’ Community app) - Do you use a Nuki bridge?
- Did you put in a new set of batteries, just to be sure Bluetooth / wifi works?
- Does it work from the Nuki smartphone app?
- Can you think of anything that changed around April 2nd?
Also pls read Welcome to the forum!