Event ID 30700 is logged in Windows 8 or Windows Server 2012 when you try to connect to a server that is running an SMB service

Applies to: Windows 8Windows 8 EnterpriseWindows 8 Pro


Assume that you try to connect to a compliant server that is running the server message block 3.0 (SMB) service from a client computer that is running Windows 8 or Windows Server 2012. Additionally, assume that the server does not support the SMB Multichannel feature. In this situation, an event that resembles the following is logged in the System log on the client computer:
  • By default, Windows Server 2012 enables the Multichannel feature. The SMB Multichannel feature is not required to support the SMB 3.0 protocol. You can also disable this feature by using a registry key.
  • If this event is logged when you connect to a third-party SMB 3.0 implementation product, the event does not imply any defect in the third-party product.


After you apply this hotfix, the severity of the event is changed from a Warning event to an Information event.

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem.

If the hotfix is available for download, there is a "Hotfix Download Available" section at the top of this Knowledge Base article. If this section does not appear, submit a request to Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft website: Note The "Hotfix Download Available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.


To apply this hotfix, you must be running Windows 8, or Windows Server 2012.

Registry information

To apply this hotfix, you do not have to make any changes to the registry.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.


To work around this issue, log the event as an Information event instead of as a Warning event.


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

More Information

For more information about the basics of SMB Multichannel, go to the following Microsoft website:
For more information about network performance and availability, go to the following Microsoft. website:
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates