STIG requires to add hostname and IP Address to IIS default website bindings:

• Open IIS Manager.
• Right-click on the site name under review.
• Select “Edit Bindings”.
• Assign hostname entries and unique IP addresses to port 80 for HTTP and port 443 for HTTPS.
• Click "OK".
• Select "Apply" from the "Actions" pane.

Found in SMP 8.1 RU1, expect similar results for SMP 8.x

We found that when set, the added binding information caused unstable communications on NS and Site Servers.