Check/Verify that the Hanwha Media server Service is running. Open TERMINAL and enter the command below:
systemctl --type=service
Scroll down. hanwha-mediaserver.service. Status should show "Loaded Active Running"
To STOP the Hanwha Media server Service enter the command: sudo systemctl stop hanwha-mediaserver.service
An authentication prompt will appear, enter your password and click Authenticate.
To START the Hanwha Media server Service enter the command: sudo systemctl start hanwha-mediaserver.service