Christian

The client will require a working connection. So you have to queue your data on your own which is the recommended way. For this an Azure Queue or similar can...

This will be fixed in the next version 3.1.0. It supports more MQTTv5 features.

@ChilliPommes @Luki936 The Managed Client does not store this value internally so it can't work with the managed client right now. It only stores the topic and the QoS. I...

Do you have a exception or trace for us? Is the IPv6 address really the problem?

Please also share the trace from MQTTnet. See samples on how to enable it.

See sample _Log_To_Console_.

Closing this due to inactivity. If the issue persists please reopen the ticket.

Do you have more details or a full solution which has this issue? I also use MQTTnet in a Xamarin application and I cannot reproduce the issue. What exactly do...

@redradist What dies "add" the connection failed handler? Do you have also some code in the handler or only attached?

@fdundjer Sorry for the long delay. Is this issue still relevant? I am not sure how to solve this because this library only makes use of sockets. Probably it is...