Synology NAS Inspector times out while trying to connect.

Error Message: "Timed out while trying to connect to Synology appliance. Check that appliance is online and verify connectivity over HTTPS via the provided device hostname and port."

Check the following:

• If your inspector is running via an on-premises agent, verify that you can successfully log into your Synology NAS device via the application portal from the machine on which the agent is installed.
• Verify that you're able to login to the application portal using the hostname and port you specified in the inspector template:
  • Using the browser of your choice, attempt to reach your device's application portal by entering your device's hostname in the address bar, followed by the HTTPS port, e.g. :