Schedule activities cannot be launch ->cannot access



Hi,

I used one month ago a Windows 2000 Professional client environment without
problems in a Windows 2000 AD.
Now, nothing has been changed from server side but the client patform has
changed to Windows XP Professional service pack 2 (firewall is disable).
I scheduled a task which ran every morning and went well with Windows 2000.
Now, in Windows XP, the task cannot be run because it loses the connection
during the night with the following message :

Event Type: Warning
Event Source: LSASRV
Event Category: SPNEGO (Negotiator)
Event ID: 40961
Date: 04/21/2005
Time: 1:00:50 AM
User: N/A
Computer: COMPUTER
Description: The Security System could not establish a secured connection
with the server ldap/DCXX No authentication protocol was available.

After testing different configuations, I notice that if I lock the screen
saver by a password, the problem appears otherwise not.
I looked at the MS Knowledge base and the article 885887 told something
similar about it. Are there any fixes for this problem ?
Thanks to reply to my question.
Best regards,
Job

.



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