No error message is returned on screen. Using Developer Tools in the Browser will show a 500 error.
The issue was caused by an IP address being specified in the Bindings for the https connection.
Remove the IP address from the https connection and set to All Unassigned.
1. Open IIS Manager on the Enterprise Vault server.
2. Expand Server_name > Sites and click on Default Web Site.
3. In the Actions pane click Bindings.
4. If an IP Address is configured for the https connection choose Edit.
5. Change the IP address value to All Unassigned and click OK.
Attempt to connect to the Dashboard URL to confirm the site is resolving properly.
Note: It may be necessary to Unblock the installer files and install again to ensure all components are installed and registered properly.