| Problem | Likely Cause | Solution | |---------|--------------|----------| | “License manager not found” | Firewall blocking port 5099 | Add inbound rule for lserv.exe | | Service starts then stops | Corrupt license file | Re-request license from vendor | | Clients connect intermittently | UDP port 5093 blocked | Open UDP on same port | | Windows 10/11 server crash | OS incompatibility | Run in Windows Server 2016 compatibility mode | | “Sentinel RMS 9.7 download” corrupted | Incomplete archive | Verify SHA-256 checksum from vendor |
During setup, it is recommended to leave the option enabled to allow the license manager to communicate across your network. sentinel rms license manager 9.7 download