rc - 2 steht für MQTT_CONNECT_FAILED - the network connection failed
*-5 MQTT_DNS_DISCONNECTED - the DNS server cannot be reached or name cannot be resolved*
*-4 MQTT_CONNECTION_TIMEOUT - the server didn't respond within the keepalive time*
*-3 MQTT_CONNECTION_LOST - the network connection was broken*
*-2 MQTT_CONNECT_FAILED - the network connection failed*
*-1 MQTT_DISCONNECTED - the client is disconnected cleanly*
*0 MQTT_CONNECTED - the client is connected*
*1 MQTT_CONNECT_BAD_PROTOCOL - the server doesn't support the requested version of MQTT*
*2 MQTT_CONNECT_BAD_CLIENT_ID - the server rejected the client identifier*
*3 MQTT_CONNECT_UNAVAILABLE - the server was unable to accept the connection*
*4 MQTT_CONNECT_BAD_CREDENTIALS -the username/password were rejected*
*5 MQTT_CONNECT_UNAUTHORIZED - the client was not authorized to connect*
VG Jim
by HarryP: Code-/Logzeilen formatiert (bitte immer in </> einbinden)
@HarryP Das waren keine Code- oder Logzeilen sondern das war eine tabellarische Fehlerauflisten von MQTT im Textformat die ich übernommen habe. 