(Agent‑based PNs) Restart the onQ Service If the onQ Service is not running on the protected node, the HA Appliance cannot establish a secure connection to that protected node. (Windows) To restart the service: 1. RDP to the Protected Node. 2. Go to Start > Programs > Control Panel > Services. 3. Right-click on Quorum onQ Service, and choose Restart. (Linux) To restart the service: 1. Verify that the service is installed: > rpm -qa | grep node 2. Start the service: > service dcrm-node start