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Event 30818 RDMA connections fail back to TCP caused by NDK disconnection

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Symptoms

Assume that you have a server that runs Windows Server 2012 R2. When you transfer data over SMB by using certain RDMA-capable network adapters, the RDMA connections may fail back to TCP. Additionally, in Event Viewer you see periodic SMBClient events with Event ID 30818.

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Resolution

To resolve this issue, install update 2919355. For more information about how to obtain update 2919355, click the following article number to view the article in the Microsoft Knowledge Base:
2919355 Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 Update April, 2014

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Status

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

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More Information

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

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Keywords: kbqfe, kbfix, kbsurveynew, kbexpertiseinter, kb

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Article Info
Article ID : 2925980
Revision : 1
Created on : 1/7/2017
Published on : 4/8/2014
Exists online : False
Views : 223