Error 4014 Severity 16 State A fatal error occurred while reading the input streamfrom the network

Question

We encounter following error intermittently Error 4014 Severity 20 State 16 , A fatal error occurred while reading the input stream from the network
I have checked the RING_BUFFER_CONNECTIVITY from sys.dm_os_ring_buffers, we are able to find the remote_host IP where connections are being closed/killed, the error being logged in sys.dm_os_ring_buffers, comes from multiple remote_host, we have raised
to O/s and Networking Team they seem to have no clue, why this error occurs
Server: Virtual Machine
Operating System: WINDOW 2008 R2 SP1
MSSQL 2008 STD ED SP3 10.0.5850.0
Database mirroring is configured for the application database.
Antivirus enable on the database server
How do we find the cause for this error being logged in SQL server logs, is this error due to SQL database mirroring or memory issue?
What needs to be checked on the O/s and Network, I have been checking on the internet and everywhere it is pointing to NIC drivers or security patches
Also in the system events following error was being logged, but after restarting the vm service this error has not re-occurred
A timeout (30000 milliseconds) was reached while waiting for a transaction response from the VMTools service
Kindly suggest on Error 4014 Severity 20 State 16, A fatal error how to resolve
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Answer 1

Hello,
Could you try to use Network Monitor or WireShark to examine if the connections resets are coming from a client computer
or from the host where SQL Server is installed?
Network Monitor can be downloaded from the following link:
http://www.microsoft.com/en-us/download/details.aspx?id=4865
If you use Network Monitor trace you will identify connection resets by looking for “TCP: Flags=,,R.A” at the description column on the Frame Summary. Once you find the flag, the Source column will tell you the identity of the host resetting the connection,
maybe is not the SQL Server host.
Hope this helps.
Regards,
Alberto Morillo
SQLCoffee.com