The Client Identifier is a valid string but is not permitted by the server. Sent in a CONNACK packet when the server rejects the client's identifier, for example because it is too long or contains disallowed characters.
Numeric value: 133
The Client Identifier is a valid string but is not permitted by the server. Sent in a CONNACK packet when the server rejects the client's identifier, for example because it is too long or contains disallowed characters.
Numeric value: 133