Terminal Server Does Not Accept Enough Client Connections

Recently I had a client whose organization was growing and needed a few more client access licenses for their Windows 2003 Terminal Server. (see this post for an interesting issue that was encountered.) Once the CALs were installed and activated, all was well until it became apparent that the server was refusing connections before it hit the license limit.  After some head-scratching I found a pretty obvious, but often overlooked setting:

To find this setting:

  1. Open the “Terminal Services Configuration” MMC snap-in.
  2. Select “Connections”.
  3. Right-click “RDP-Tcp” and click “Properties”
  4. The “Maximum connections:” setting is found on the “Network Adapter” tab.



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