Which ports do I have to open in my firewall?

The air-Q communicates with the Internet via port 8883, which is often used for the MQTT protocol, with the MQTT endpoint alguhxninl5b7-ats.iot.eu-central-1.amazonaws.com.

In order for the air-Q to be able to send data to the air-Q cloud, this port and server must be released by the firewall.