Mime-Type option is missing or not present in IIS.
Adding manual Static Content Role via Server Manager.
To solve the missing (blank CSS) and image issue, you need to install the “Static Content Role” on the License server by following the instructions below.
- Open the “Administrative Tools” and then “Server Manager.”
- Select “Web Server” under the “Roles” section.
- Select “Static Content” under the “Common Http Features”
- Install this feature
- Restart the IIS