Rd Licensing | Diagnoser

Choose RD Licensing Diagnoser from the list.

Checks if there are enough installed CALs to support incoming connections. rd licensing diagnoser

Click on Tools in the upper right corner. Choose RD Licensing Diagnoser from the list

Your server is running. The service says "Started." But the Diagnoser looks deeper. It checks if the license server is activated with Microsoft. It checks if it has been discovered via AD or Registry. Often, the Diagnoser finds a server that is technically alive but deaf to the Session Host. The fix? Reconfiguring the discovery scope—a five-minute fix that would have taken hours to find manually. Your server is running

Monday at 8:00 AM: 50 users are locked out. The Event Viewer is a sea of red errors: Event ID 205 (domain join issues), Event ID 16 (license server unavailable), Event ID 21 (CAL not found).