KB961775

When software that uses Transport Driver Interface (TDI) drivers, such as some antivirus software, is installed on a Windows Server 2008 system or on Windows Vista Service Pack 1 (SP1) system, the handle count of the system process keeps increasing. This problem occurs if the Windows Server 2008 system or the Windows Vista Service Pack 1 (SP1) system is running on a computer that has multiple processors. If this issue occurs for some time, the computer begins to run out of system resources. Therefore, any new automatic file distribution (AFD) connection to this computer fails.

Additionally, the following problems may occur if the computer is a domain controller:

  • User authentication fails
  • Sysvol replication fails
  • One of the following Netlogon events occurs:
    • Netlogon event 5775
    • Netlogon event 5792
    • Netlogon event 5792
    • Netlogon event 5719

For example, the following is a sample event when Netlogon event 5775 occurs:

Log Name: System
Source: NETLOGON
Event ID: 5775
Level: Error
Keywords: Classic
Description:
The dynamic deletion of the DNS record '. 600 IN SRV 0 100 389 .' failed on the following DNS server:
DNS server IP address: 
Returned Response Code (RCODE): 5
Returned Status Code: 10055
USER ACTION
To prevent remote computers from connecting unnecessarily to the domain controller, delete the record manually or troubleshoot the failure to dynamically delete the record. To learn more about debugging DNS, see Help and Support Center.

ADDITIONAL DATA
Error Value: An operation on a socket could not be performed because the system lacked sufficient buffer space or because a queue was full. 

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