Serial port connection over terminal server

I have an Win XP machine connecting to a W23k machine.  I have a Metrologic scanner attached to both machines.  When trying to scan a barcode on both machines locally they both work.  However, if you connect to the server via the XP machine and scan on the XP machine it does not work.  Both machines have the same driver set installed.  Both machines are up-to-date on Windows updates.  I have enabled the mapping of serial ports in the Termainl Server manager and I have also enabled it under the Remote Desktop Connection on the XP machine.  It appears that Termainl Server is blocking the mapping of the serial port.  Is this possible?  Thoughts?

Thanks in advance.

Joe Pierce
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jhautaniConnect With a Mentor Commented:
Is you server a member of an AD domain? Terminal Server settings can be set in GPO, which override settings in Terminal Server Manager.
Check whether 'Do not allow COM port redirection' is set in some GPO. Setting can be found in GPO:Computer Configuration->Administrative Templates->WIndows Components->Terminal Services->Client/Server data redirection.

hope this helps
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