Windows Server 2008 R2 with various OS Win interrupted network connections

Not a question, but a finding:

Shortly after the upgrade to Kaspersky Endpoint Protection 8, I started to have problems with seemingly random work stations in my area, the loss of their connection to one or the other of my boxes of Windows Server 2008 R2.  Some of the workstations XP SP3, some Win 7 - two BONES have been affected.  The breakdown of connectivity went both ways - the server could not see the workstation and vice versa.  Sometimes if I waited about an hour, the workstation could re-establish his connection spontaneously, but usually I have to change the IP address of the workstation.  Doing so systematically restored the connection.  Release and renew for workstations using DHCP didn't work because they always had the same new IP - address should change to restore the connection.  After a process of exhaustive and exhausting trial and error to determine the cause of this problem (I initially make the connection between the upgrade of Endpoint Protection and this question), I finally determined that the network attack blocker component was causing this problem.  I disabled this component during my assignment and did not have connectivity losses in the three months that I got that off item.  I also had a case when after the reactivation of network attack blocker, I got a workstation loses its connection to one of the servers, and after disabling the network trainer attack once again, work stations that had lost its connection almost immediately restored the connection itself.  So, if you are having this problem and use Kaspersky Endpoint Protection 8, disable the network attack blocker component.

Hello

Glad to know that you were able to solve the problem. Your efforts to solve this problem is appreciated.

You can also publish your solution or results in Windows Server 2008 R2 TechNet forums: http://technet.microsoft.com/en-us/windowsserver/bb310558

Thank you.

Tags: Windows

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