With User Manager, when you attempt to add users or global groups from a trusted Windows 2000 domain (on a Windows NT 4.0 domain controller) to a local group in the Windows NT 4.0 domain, you may receive the following error message:
Unable to browse the selected domain because the following error occurred:
There are currently no logon servers available to service the logon request.
Also, you may observe in User Manager that existing users and groups from the Windows 2000 domain, which are members of domain local groups, are displayed as "Account Unknown."
This behavior can occur because the RestrictAnonymous
registry value is set to Level 2
on the Windows 2000 domain controller on which the Windows NT 4.0-based computer has its secure channel.
: If you use Registry Editor incorrectly, you may cause serious problems that may
require you to reinstall your operating system. Microsoft cannot guarantee that you can solve
problems that result from using Registry Editor incorrectly. Use Registry Editor at your own
To resolve this behavior:
- Set the RestrictAnonymous registry value to 0 or 1 on the Windows 2000 domain controller. This registry value can be found at:
Value Type: REG_DWORD
Value Data: 0x1 or 0x0(Hex)
- Restart the domain controller.
- Break, and then reestablish the trust.
registry value with a Level 2
setting must only be used in "pure" Windows 2000 environments.
For additional information about the RestrictAnonymous registry value in Windows 2000, click the article number below
to view the article in the Microsoft Knowledge Base:
How to Use the RestrictAnonymous Registry Value in Windows 2000