HI,
I have a problem registering the topic using Rest calls.
Until some time ago, to be able to register to a topic it was enough for me to do batchAdd or batchRemove and the device automatically registered or canceled itself from receiving Topic messages.
Following the move to Oauth2, I am experiencing problems regarding registration to the topic.
In particular, I always receive the 401 error despite having correctly configured the OAuth2 generation, in fact for sending messages to the single device, authentication via OAUTH2 works correctly.
What am I doing wrong?