Windows Server 2003 – Increase Maximum Concurrent Remote Connections

remote desktopremote-accesswindows-server-2003windows-terminal-services

I am trying to allow more than the default of 2 concurrent remote connections to a server running Windows Server 2003.

Background:

I went to "Start" => "Administration Tools" => "Terminal Services Configuration"

I opened up the "Properties" of "RDP-tcp" in the connections tree and selected the "Network Adapter" tab:

  • "Unlimited connections" is grayed out
  • In "Maximum connections" I can change the value to "1" using the arrows
  • However, I can not increase the value above "2" with the arrows
  • I typed in 4 and clicked apply. But the value did not stick.

Is this a licensing issue? If not, how do I allow more than 2 remote session?

Best Answer

This is a licensing issue. W/o purchasing Terminal Services CALs you're limited just as you've seen to two (2) RDP connections.

(You can sort of cheat and get one more session, BTW, by using the "/admin" or "/console" switch on the Terminal Services client.)