Event ID 5701 Starting Netlogon on Domain Controller

ID: Q217023

The information in this article applies to:

Microsoft Windows NT Server version 4.0
Microsoft Windows NT Server, Enterprise Edition version 4.0

IMPORTANT: This article contains information about editing the registry. Before you edit the registry, make sure you understand how to restore it if a problem occurs. For information about how to do this, view the "Restoring the Registry" Help topic in Regedit.exe or the "Restoring a Registry Key" Help topic in Regedt32.exe.

SYMPTOMS

While starting the Netlogon service on a domain controller, the service fails with an error 5701. There is also an event logged to the Event Log:

Netlogon Event ID 5701:

The Netlogon service failed to update the domain trust list. The following error occurred: There are currently no logon servers to validate the logon request.

CAUSE

The result of running out of buffer space in the NetBT datagram buffer may be one cause of this error.

RESOLUTION

WARNING: Using Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.

For information about how to edit the registry, view the "Changing Keys And Values" Help topic in Registry Editor (Regedit.exe) or the "Add and Delete Information in the Registry" and "Edit Registry Data" Help topics in Regedt32.exe. Note that you should back up the registry before you edit it. If you are running Windows NT, you should also update your Emergency Repair Disk (ERD).

To resolve this issue, increase MaxDgramBuffering from 128 KB to 256 KB.

Start Registry Editor (Regedt32.exe).

Locate the following key in the registry:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NetBT\Parameters

On the Edit menu, click Add Value, and then add the following registry value:

Value Name: MaxDgramBuffering
Data Type: REG_DWORD
Value: 0x40000

Quit Registry Editor.

MORE INFORMATION

MaxDgramBuffering

Key: Netbt\Parameters
Value Type: REG_DWORD - Count of bytes
Valid Range: 0 - 0xFFFFFFFF
Default: 0x20000 (128 KB)
Description: This parameter specifies the maximum amount of memory that NetBT will dynamically allocate for all outstanding datagram sends. After this limit is reached, further sends will fail due to insufficient resources.

Additional query words: 5701

Keywords :
Version : winnt:4.0
Platform : winnt
Issue type : kbprb