Answer

PROBLEM

When installing the CMS the installation will roll back shortly before finishing without warning or error displayed.

The "%TEMP%\lanss_v120_lgcmcinstallkitlog.txt" installation log file shows the following lines: ExecFirewallExceptions: Error 0x800706d9: failed trying to find existing port rule
ExecFirewallExceptions: Error 0x800706d9: failed to add/update port exception for name 'GFI LanGuard 12 Server Service' on port 1077, protocol 6

ENVIRONMENT

• GFI LanGuard Central Management Server
• All supported environments

SOLUTION

1. Enable the Windows Firewall service
2. Start the Windows Firewall service
3. Repeat the installation

CAUSE

A port exception cannot be set due to the service being disabled.