Data to Server -> Azure Event Hub

We are trying to use “Data to server” functionality to send data to Azure Event Hub via MQTT.

We have created Certificates on teltonika and imported them to Event Hub. But the connection doesn’t establish. We have a TCP dump file where we get error “Unknow CA”.

The “Allow insecure connection” option is enabled in the “Data to server” menu.

Has anyone successfully connected Teltonika device to Azure event grid. We are unable to make the authentication to work.