One remote site systems and servers are not updating the definition from long time. Tomorrow i will stay on that location. Can anyone share the troubleshoot to perform there.

How many clients are not update?

What is the client OS and SEP client version?

Run the symhelp analysis tool to identify the problem and fix it

Download the Symantec Help (SymHelp) diagnostic tool to detect Symantec product issues

Article:TECH170752

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Created: 2011-09-29

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Updated: 2014-10-01

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Article URL http://www.symantec.com/docs/TECH170752

Troubleshooting Client Communication with SEPM http://www.symantec.com/docs/TECH95789 Troubleshooting Out-of-date Definitions on Clients (Part 1) http://www.symantec.com/tv/allvideos/details.jsp?vid=2236084589001 Troubleshooting Out-of-date Definitions on Clients (Part 2) http://www.symantec.com/tv/allvideos/details.jsp?vid=2236084558001

15 clients.

OS is (Win-XP, Win-7) and sep is 11.0.7.

Tomorrow i can perform the tool.

11.x client is no longer recievethe defintion. Upgrade the version in 12.1

https://www-secure.symantec.com/connect/forums/do-new-symantec-defintions-still-support-11x-sepm-versions

https://www-secure.symantec.com/connect/blogs/did-you-get-security-memo-symantec-endpoint-protection-11-eosl

https://www-secure.symantec.com/connect/forums/symantec-endpoint-protection-110x-eosl

What exact sepm version? On January 5th, 2015, Symantec Endpoint Protection version 11.0.x reached end of support life. Virus definitions and security updates ceased to be published to LiveUpdate and general support for the product is no longer provided. The initial end of support life date was originally scheduled for January 5th, 2014. All customers were provided a complimentary extention. No further extentions will be provided. It's strongly recommended to upgrade to SEP 12.1, RU5 is the latest release.

SEP 11.x is not supported and EOL on January 5th, 2015,. You cannot be get the defintion longer for the 11.x clients

See the forum shared by Admin

https://www-secure.symantec.com/connect/forums/symantec-endpoint-protection-110x-eosl

I suggest you to upgrade the version in 12.x

SEPM 11.x to SEPM 12.1 Upgrade process graphical overview with SQL database

https://www-secure.symantec.com/connect/articles/sepm-11x-sepm-121-upgrade-process-graphical-overview-sql-database

SEPM 11.x to SEPM 12.1 Upgrade process graphical overview with Embedded database

https://www-secure.symantec.com/connect/articles/sepm-11x-sepm-121-upgrade-process-graphical-overview-embedded-database

Upgrade or migrate to Symantec Endpoint Protection 12.1.5

Article:TECH224034

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Created: 2014-08-22

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Updated: 2014-12-15

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Article URL http://www.symantec.com/docs/TECH224034

Forum - https://www-secure.symantec.com/connect/forums/live-update-failed-1

Hi,

Thank you for posting in Symantec community.

I would be glad to answer your query.

On January 5th, 2015, Symantec Endpoint Protection version 11.0.x reached end of support life. Virus definitions and security updates ceased to be published to LiveUpdate and general support for the product is no longer provided.

The initial end of support life date was originally scheduled for January 5th, 2014. All customers were provided a complimentary extention. No further extentions will be provided.

It's strongly recommended to upgrade to SEP 12.1, RU5 is the latest release.

To know the best practice I would recommend you to go through the following article.

https://www-secure.symantec.com/connect/articles/sep-11x-sep-121-upgrade-process-graphical-overview

Check these article also:

Upgrade or migrate to Symantec Endpoint Protection 12.1.5

http://www.symantec.com/docs/TECH224034

FAQ: Upgrading Symantec Endpoint Protection 11.x to version 12.1.x

http://www.symantec.com/docs/TECH207274

Well what version? As others users have mentioned, SEP is end of support life and no longer receives definitions as of 1/5/15.

If 12.1, enable sylink debugging on one affected client and post the log here for review.

Thanks all for the helpful comments.