RDP/Citrix clients cannot connect to Terminal Server - Protocol Driver Error
You may receive one of the following error messages:
The remote session was disconnected because the local computer’s client access license could not be upgraded or renewed. Please contact the server administrator.
• The remote computer disconnected the session because of an error in the licensing protocol. Please try connecting to the remote computer again or contact your server administrator.
• The remote session was disconnected because there were network problems during the licensing protocol. Please try connecting to the remote computer again.
• Licensing error occurred while the client was attempting to connect. (Licensing timed out.) Please try connecting to the remote computer again.
• Because of a security error, the client could not connect to the terminal server. After making sure that you are logged on to the network, try connecting to the server again.
Protocol Driver error
A client user/device may face this issue if when a the relevant Terminal Services temporary/full CAL has expired and cannot be renewed or upgraded. The renewal or upgrade process will fail if the client that is logged in does not have write access to the registry key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSLicensing.
Provide users with full control of the above key or at least write access.
Terminal Services UncategorizedTerminal Services Uncategorized
Filed under: Terminal Services
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