| Event Id | 5791 |
| Source | NetLogon |
| Description | The domain of this computer, MEANSPC has been downgraded from Windows 2000 or newer to Windows NT4 or older. The computer cannot function properly in this case for authentication purposes. This computer needs to rejoin the domain. The following error occurred: There are currently no logon servers available to service the logon request. |
| Event Information | According to Microsoft: After you upgrade the first of multiple Windows NT Server 4.0-based domain controllers to Windows 2000 Server, all of the domains Windows 2000 Professional-based clients connect to that domain controller for authentication purposes. These clients do not connect to any other domain controller; therefore, the upgraded domain controller may become overloaded. You may also experience loss of fault tolerance capability. This behavior can occur because Windows 2000 Professional-based clients use only Windows 2000-based domain controllers in a mixed-mode domain. To resolve this problem, obtain the latest service pack for Windows 2000. Microsoft has confirmed that this is a problem in Microsoft Windows 2000. This problem was first corrected in Windows 2000 Service Pack 2. |
| Reference Links | Windows 2000-based clients connect only to the domain controller that was upgraded from Windows NT 4.0 in a mixed-mode domain |
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