Can't connect to TS

  • Thread starter =?ISO-8859-1?Q?Albert_Lizondo_Fern=E1ndez?=
  • Start date


I have a W2k with Terminal Services and one client can't connect to it.
The client have WinXP, and connect everyday with it. There are two W2k
DC, one of them as "License Server". The client connect throught a
Tarantella server (under Debian linux), which send a random user.

The TS Event System show this message:
Tipo de suceso: Información
Origen del suceso: TermService
Categoría del suceso: Ninguno
Id. del suceso: 1003
Fecha: 09/08/2005
Hora: 18:40:06
Usuario: No disponible
Equipo: xxxxx (hidden)
El cliente de Terminal Server "SCVDDF3ZA" ha proporcionado una licencia
no válida.

The client has connected succesfully for more than three months,
but they failed the connection yesterday.

More than 20 users are connecting to this TS every day without problems,
and has the same OS. The licensing mode is per-seat.

A person tell me that Microsoft drops recently the licenses for TS over
w2k for XP, and the problem will solve by deleting the registry entry
HKLM\SOFTWARE\Microsoft\MSLicensing and reconnect to the TS to
regenerate it.

Will anyone confirm that? What it means, that we will regenerate it
every three months?


Vera Noest [MVP]

No, Microsoft has *not* dropped the free TS CALs for XP Pro clients
connecting to a W2K Terminal Server. What you have heard applies to
Windows 2003, where also XP Pro clients need a purchased TS CAL.

You can try to delete the locally stored license from the PC.
If that doesn't help, you might have to delete some registry keys
from the server, as documented here:

323597 - Windows XP Clients Cannot Connect to a Windows 2000
Terminal Services Server

Vera Noest
MCSE, CCEA, Microsoft MVP - Terminal Server
TS troubleshooting:
___ please respond in newsgroup, NOT by private email ___


Thank you very much for your answer.

Finally I have been solved this error by entering the correct License
Server in HKLM\SYSTEM\CurrentControlSet\Services\TermService\Parametres
where DefaultLicenseServer value was incorrect.

Albert Lizondo Fernández

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