Random network interruptions srv error 2012


We have been have random network errors which shuts down a program working off of a database on the server.  During this time there are a number of srv 2012 event IDs occurring.   There was one set of these events tied to a VSS shadow copy that was scheduled for 12:00.  I changed the task to run after hours and the events at that time have stopped.  However there are now random outages that occur, sometimes 2 or 3 times a day.

Running Server 2008 R2.

This is the event ID info:

Log Name:      System
Source:        srv
Date:          8/12/2015 10:50:49 AM
Event ID:      2012
Task Category: None
Level:         Warning
Keywords:      Classic
User:          N/A
Computer:      Woods08.twia.local
While transmitting or receiving data, the server encountered a network error. Occassional errors are expected, but large amounts of these indicate a possible error in your network configuration.  The error status code is contained within the returned data (formatted as Words) and may point you towards the problem.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
    <Provider Name="srv" />
    <EventID Qualifiers="32768">2012</EventID>
    <TimeCreated SystemTime="2015-08-12T14:50:49.796755400Z" />
    <Security />

Any ideas on how to troubleshoot.


laltobelliIT ConsultantAsked:
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Dan McFaddenSystems EngineerCommented:
This topic has been discussed here on EE before:

link:  http://www.experts-exchange.com/OS/Microsoft_Operating_Systems/Server/Windows_Server_2008/Q_28182983.html

Essentially this is protocol implementation issue regarding the CIFS/SMB conversation clients are having with the server.  As stated in the solution and KB article (https://support.microsoft.com/en-us/kb/2885205), the warning can be safely ignored.

laltobelliIT ConsultantAuthor Commented:
I wish it could be safely ignored (I have seen the MS Article).   The fact of the matter is I get a series of these errors at the same time that all our users get bumped out of the database.

The second line of the error message states that if there are a number of these errors then there could be a network configuration issue.  It's a fairly simple network configuration.  Since this problem started we have also replaced the router and switch, which has had no effect on the issue.   Also updating the drivers have had no effect.

Dan McFaddenSystems EngineerCommented:
Are there any additional errors reported in the System or Application event logs?  Also, are there any messages written to the SQL Logs when this event happens?

laltobelliIT ConsultantAuthor Commented:
Looking through event logs there were no other errors.  

After much effort I got Dell Open Manager installed and finally working.  It indicated a bad drive in a RAID 6 configuration.   Even though there were no indicated drive errors I replaced the drive and the issue went away.

Not too sure why no drive errors showed up.  Apparently Dells RAID does not report back to Windows event logs...

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laltobelliIT ConsultantAuthor Commented:
No one else came up with a solution or a lead into what could have been causing the error.
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Windows Server 2008

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