MQTT publisher → Azure Event Grid Namespace

Hi,

I’m trying to set MikroTik Knot as MQTT publisher for Azure Event Grid Namespace ( MQTT broker).

The example config described here https://learn.microsoft.com/en-us/azure/event-grid/mqtt-publish-and-subscribe-portal is working ok with MQTTX as MQTT publisher and subscriber.

Doing the same on KNOT, I’m getting “failure: ssl failure [ssl: unsupported certificate algo”

[pstojak9@KNOT02] > system/script/run Modbus_MQTT_Azure_v2.0 
[*] Gathering system info...
[*] Gathering Modbus info...
[*] Total message size: 311 bytes
[*] Sending message to MQTT broker...
failure: ssl failure [ssl: unsupported certificate algo]

cert genereated with step and imported as trusted with private key.

.\step certificate create client1-authnID client1-authnID.pem client1-authnID.key --ca .step/certs/intermediate_ca.crt --ca-key .step/secrets/intermediate_ca_key --no-password --insecure --not-after 2400h

Any suggestions?

thanks!