Christian

I prefer to expose the packet identifier in the _MqttApplicationMessage_. If it is left 0 a new one will be created using the identifier provider. Additionally, I will add a...

The samples are now in sync with version 5 of the library. There are also links to the samples of older versions in the Wiki

@hbertsch There is an implementation of the interface as part of the project called _DefaultMqttCertificatesProvider_. It requires that all certificates are provided in the constructor. Later on, these certificates are...

Could you please add a Unit Tests which covers your situation? I am curious if we can make it fast even with an attached event handler (which is often the...

The MQTTnet server requires ASP.NET to support WebSocket connections. There is no other way of doing this.

Please check app permissions etc.

To me it looks like that the DNS name could not be resolved. Maybe the DNS server is not reachable?