Article ID: 126752
Article Last Modified on 10/31/2006
APPLIES TO
- Microsoft Windows NT Workstation 3.5
- Microsoft Windows NT Server 3.5
This article was previously published under Q126752
SYMPTOMS
Windows NT Netlogon services may fail. Users may fail to be logged on and servers may be unable to synchronize. The following errors may appear be or reported in the system log:
CAUSE
When the default protocol becomes inoperable, Netlogon fails to complete operations because it does not attempt to use other installed protocols.
NOTE: Protocols can become inoperable when catastrophic infrastructure problems occur involving routers or network addressing.
RESOLUTION
Netlogon has been updated. When Netlogon receives an error responding to a mailslot message from the first protocol that it attempts to use, it responds to duplicates of the original message received by all available protocols. Datagram mailslot messages are used by Netlogon to initiate client logon operations and inter-domain operations including the synchronization of domain controllers (DCs). By responding to all messages received, Netlogon responds successfully, even if an individual protocol is not operating properly.
STATUS
Microsoft has confirmed this to be a problem in Windows NT version 3.5. This problem was corrected in the latest US Service Pack for Windows NT. For information on obtaining this update, query on the following word in the Microsoft Knowledge Base (without the spaces):
S E R V P A C K
Additional query words: prodnt domain controller controllers viewer network mail slot net logon
Keywords: KB126752
