| Error Message | Likely Cause | Fix |
|---------------|--------------|-----|
| “Terminal Services service is not running” | Service disabled or crashed | Run services.msc, start “Remote Desktop Services” |
| “Listener RDP-Tcp is not active” | RDP disabled via Group Policy | Enable RDP in System Properties or edit GPO |
| “Licensing timeout imminent” | Grace period expired | Activate license server and install CALs |
| “Access denied for user” | User not in allowed group | Add user to “Remote Desktop Users” |
The term "TSC diagnostic tool" can refer to:
Most likely you want the TSC sync diagnostic utility from Microsoft or open-source tools like tsc_test or latencymon (which checks TSC stability). tsc diagnostic tool v1.64 download
When a user runs the diagnostic tool with a target version flag:
tsc --diagnostics --target-version 1.64
The tool will:
Run retrospective diagnostics
Compatibility Matrix Output
Offline-first download
The tool supports several command-line switches. Running it without arguments produces a summary report in the console. | Error Message | Likely Cause | Fix