Troubleshooting: Running the Cmdlet Fails Because the Microosft Dynamics NAV Server Fails to Start-Restart
You can find more information about the Microsoft Dynamics NAV Server failure reason in the event log. The error most likely occurs because of the impossibility of the Microsoft Dynamics NAV Server to correctly configure the ACL for the ports that are used by the server’s communication endpoints. In some situations, when there are URLACL entries for the same ports but reserved by other services, including other Microsoft Dynamics NAV Servers, the removal procedure fails because of insufficient permissions. The user account running the Microsoft Dynamics NAV Server has to have administrative permissions for the modification of the URLACL to succeed. To fix the issue, you can try one of the following:
Remove the URL ACL entries manually. For more information, see Walkthrough: Configuring Web Services to Use SSL (SOAP and OData).
Set the Microsoft Dynamics NAV Server to run as Administrator account on your computer.