Hello everyone, the symantec client has been connected with the console successfully, but the anti-virus version cannot be updated, which could cause the failure of updating. Both the client and console are runned on windows 2008.

Run the symhelp tool on an affected client. Also enable sylink debugging and let it run for a bit. Post the log for review.

Troubleshooting computer issues with the Symantec Help support tool

http://www.symantec.com/docs/HOWTO80839

How to enable Sylink debugging for the Symantec Endpoint Protection 11.x and 12.1 client in the Windows Registry

http://www.symantec.com/docs/TECH104758

Run the symhelp to find the issue on client

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

Try to clean the defintion for update it first

How to clear out definitions for a Symantec Endpoint Protection 12.1 client manually

Hi dogbrother,

These videos may help:

Troubleshooting Out-of-date Definitions on Clients (Part 1)http://www.symantec.com/tv/allvideos/details.jsp?vid=2236084589001

Troubleshooting Out-of-date Definitions on Clients (Part 2)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

How to Confirm a Client is Getting Definitions From a Group Update Provider (GUP)http://www.symantec.com/tv/community/details.jsp?vid=2270549499001

Hi dogbrother,

Just a ping to see if you have resolved your issue.  The thread is still marked "needs solution."

Many thanks,

Mick