: The installer may fail if specific ports are blocked. UDP Port 6001 : Used by the Sentinel Protection Service. TCP Port 6002 : Used by some legacy server versions. Port 1947 : Used by the modern Sentinel License Manager.
: Remove any USB or parallel memory keys from the computer. Uninstall Existing Drivers : Open Control Panel > Programs and Features . Find Sentinel Protection Installer in the list. Right-click and select Uninstall . rainbow sentinel setup failed to complete successfully
Attempting to install an older version (e.g., 7.3.2) over a newer one (e.g., 7.5.0). : The installer may fail if specific ports are blocked