I kind of solve the problem by moving the dongle to 50cm to the lock.
It was 200cm before. Even 200 is very short distance.
I think you have some serious problems with the antenae of the dongle or I got unit with a defective antenae.
For comparison my phone connects to the lock from 800cm, my watch around 400cm
But dongle pluged into power can’t.
If you believe this is defective wifi unit I can gladly test a working one and edit this review.