[2056] - The remote session was disconnected because there are no Terminal Server License Servers available to provide a license.

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Parallels RDP Client shows an error while connecting:



This error usually indicates a problem with RDS licenses CALs.


  1. Verify RDS servers are pointing to your RDS license server
  2. Verify that the license server has a sufficient number of CALs for clients requiring remote connections.

Please refer to Microsoft TechNet for more information:


In addition, Remote Application Server quick start guide: installation

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