That being said, here is some general information that might be helpful:
Tracking Usage in Isolated Networks. Sentinel RMS v9. 7 is enhanced to extend support for tracking usage in isolated environments. Thales Group Sentinel RMS License Manager - CSI Knowledge Base
Isolated Network Support: Enhanced tracking for standalone and network licenses in environments without internet access.
\LicenseManager\Sentinel_RMS_8.0.970_Windows.exe