Microsoft KB Archive/101720

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Article ID: 101720

Article Last Modified on 11/1/2006


  • Microsoft Windows NT Advanced Server 3.1
  • Microsoft Windows NT Workstation 3.1

This article was previously published under Q101720


Promoting a server to a domain controlling server in a pure OS/2 domain (a domain with an OS/2 primary domain controller (PDC) and OS/2 backup domain controllers (BDC) only) often fails if the OS/2 computers are slower than 386/16 computers.


Do not run Server Manager on OS/2 domains with really slow machines. Instead, use the tools provided with Microsoft LAN Manager 2.x for OS/2 to perform the promotion manually.


Steps to Reproduce the Problem

  1. Execute Server Manager focused on a pure OS/2 domain.
  2. Select a BDC, and choose Promote from the Computer menu.

    After confirming the request, Server Manager starts the promotion process. This process involves a number of operations, including starting and stopping the NetLogon service on the selected machine and the PDC. The final operation in this sequence is to restart the NetLogon service on the old PDC (which is, by now, a BDC). This operation can time out if the OS/2 machines do not respond quickly enough (within about 45 seconds). If this problem occurs, you will see a message similar to the following:

    Could not start the NETLOGON service on \\<machine>. Error 2186: The service is not responding to the control function.

Additional query words: prodnt

Keywords: kbnetwork KB101720