Connect the RANGER ToolKit to the Ranger.
Click on the Tools Menu and select Options.
Select the "Show MQTT" Tab to expose the MQTT settings in the main RANGER configuration window.
Under MQTT tab, click on Custom and enter the credentials for your MQTT Broker.
Click on Manage TLS Certificates and import your set of certificates into the RANGER
Apply the changes, the RANGER's modem will reboot. Look under MQTT Status on the main screen to confirm that the broker connected successfully