I am trying to create a mqtt connection over tls with “ca signed server certificate”.
Problem is, my mqtt Broker (HiveMq) doesn’t receive any data and throws this error:
2020-08-07 14:03:12,489 - Client ID: UNKNOWN, IP: 18...123 was disconnected. reason: No CONNECT sent in time.
It is a little curious, because if there is no tls the order of the commands are: at+open -> at+connect -> at+send. But there is nothing with at+connect in BC66&BC66-NA SSL Application Note.