Symantec endpoint not updating virus definitions

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Other delivery methods include Group Update Providers, internal Live Update servers, or third-party tool distribution.You may need to change the delivery method to support different client platforms, large numbers of clients, or network limitations.For protection against the latest threats, it is important that antivirus definitions, IPS signatures, and other content is always up-to-date.The methods for configuring an environment's update architecture include: The default behavior and best practice in most cases is to configure sites to download updates from the Symantec Live Update server.Definition updates from SEPM 14 fail to provide SEP 12.1 clients with the correct version of definitions.

In the content folder, if there is no SEP 12.1.x.x virus definition folder (), the SEP 12.1 client cannot obtain the correct definitions version.See Choose a distribution method to update content on clients.See Choose a distribution method to update content on clients based on the platform.See Randomizing content downloads from a Live Update server.To mitigate the effect of downloads on client computers' performance, you can have the client computers download content updates when the client computers are idle.See Mitigating network overloads for client update requests.