Article ID: 1495, created on Oct 6, 2008, last review on May 10, 2014

  • Applies to:
  • Virtuozzo containers Tools



When I try to log in to a Virtual Environment (VE) using the VZPP, I get the following error message:

“Invalid username or password, please try again.”

However, I’m able to log in to the VE using the Microsoft Remote Desktop (RDP) with the same credentials.


The problem is most probably due to a misconfiguration of the Administrator group inside the VE. To verify this, execute the following command:

test_vzsrvapi vpslogin VE_ID <username> <password>

If it returns the following ...



Authorization was Unsuccessful


administrator is an Administrator


administrator is NOT a member of Administrators group


Command completed SUCCESSFULLY

... this means that the Administrator group is misconfigured (i.e., dead SIDs or NT ATHORITY/SERVICE could be added to the Administrators group).


Once you log in to the VE using the Remote Desktop, do the following:

·         Go to "My Computer."

·         Right-click on "Manage."

·         From the "Local Users and Groups" tree, select "Groups."

·         From this list, select "Administrators" and right-click on it.

·         Delete dead SIDs or NT ATHORITY/SERVICE if they are present.

You should now be able to log in to the VE using the VZPP.

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