Symantec antivirus not updating from server
Please download the latest certified definitions from Symantec website at:
The next step in the process is to decide how to obtain the files, how to update the client computers within a corporate environment, and how often to perform these updates.
It is highly recommended that the provided host names are used.
Disable content caching and AV scan in the proxy for those connection to avoid corruption of the definition files.
The file is located in the EPM folder on the installation media.
The filename is Procedure: Step 1) Check the Live Update version installed.
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Step 2) Live Update Installer Assume the wrong Live Update version is installed on the system, locate the Live Update installer shipped with your release of Endpoint Protection as per above.