|11 Dec 2009||#1|
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Symantec solution available for “Network Path Not Found
Many folks have been encountering network connectivity issues and other errors when running older versions of Symantec Endpoint Protection and Symantec Antivirus. So I’m writing to let you know that a solution has been available for the past year and is highly encouraged as an upgrade.
When a Windows Server is running older versions of Symantec Endpoint Protection 11 or Symantec Antivirus 10.2, they may experience performance issues for network shares, or intermittent loss of connectivity to SMB shares. We’re hoping we can help you avoid a costly and time consuming support incident by making this issue more visible to help you plan your deployments.
If you are running older versions of Symantec Endpoint Protection 11 and Symantec Antivirus 10.2 you should get the solution from Symantec. Symantec confirms that this is a known issue and there are updates to resolve the problem. For more information, please see the Symantec Knowledge Base article about this issue . For information about Symantec support for Endpoint Protection 11, visit the Symantec Support site. (http://www.symantec.com/business/support/index.jsp)
Please note: If you are unable to upgrade promptly or remove the software, Symantec urges you to contact their technical support to determine if there are any workarounds available to you.
The symptoms are varied, but many can be traced to lost connectivity issues to servers running this software. Here is what we’ve learned about the problem by examining case notes from Microsoft support:
· Symantec Endpoint Protection versions prior to 11.0.4202 (MR4-MP2). Older versions of Symantec Symantec Antivirus (prior to 10.2) can also cause this problem. The problem occurs when you have the Autoprotect feature enabled in the applications.
· The problem can affect 32-bit and 64-bit versions of Windows Server 2003, 2008 and 2008 R2.
· The problem is intermittent, can affect client connectivity within hours to up to a week after installing the applications. Usually a server reboot will restore connectivity for a short period before the problem happens again. You generally are able to ping and RDP to the server when the issue occurs, but shares are inaccessible using either \\IPADDRESS or \\ServerName\Share operations.
· The problem results from a deadlock in SRTSP.SYS or SRTSP64.SYS in a push lock operation, which then causes blocked kernel mode server threads handling SMB negotiation requests. Network traces will show the server not responding to the SMB dialect packet.
Here are the most common symptoms you may experience that may help you diagnose this issue. Note that if you have this software installed, the easiest troubleshooting step to determine if this is the cause of connectivity issues is to simply remove the software and reboot the server.
· Error message: “The network path was not found” or “The specified network name is no longer available” when attempting to open shares, map a drive, run DCDIAG to the to the affected server, use netdom to reset secure channel
· Error message: “RPC Server is unavailable” when trying to connect via Active Directory Users and Computers
· Error message: “RPC Server is too busy to process the request” when attempting to join the Windows server domain
· Error message: “No network provider accepted the given network path” or “File or network path no longer exists” when copying a file over the network to affected servers
· Printing issues (cannot update printer IP address via DNS)
· AD replication failures
· Cluster service fails to start, or inability to access existing File Share resources even if they are online according to the Cluster Administrator snap-in
· Event log Event ID 4226 and or 2022 may occur frequently (up to every 20 to 30 seconds)
For more information about specific problems, error messages and troubleshooting for these issues, please visit the Microsoft support site for the following articles. Please note, we are currently in the process of updating these articles, all updates should be in place by next week.
Unable to access Shares "The specified network name is no longer available"
A file sharing connection to a Windows Server 2008-based server drops unexpectedly if the server has Symantec Antivirus installed
Network shares become unresponsive on a Windows Server 2003-based computer after some time, and you receive an error message
You may experience various problems when you work with files over the network on a Windows Server 2003-based or Windows 2000 Server-based computer
Senior Program Manager
Windows Partner Application Ecosystem Team
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