Are there any errors showing in the log under Admin>>Servers?

I checked it but no..

When you drop the jdb file in the inbox folder, does it disappear?

As Pete, rightly suggested reboot is a good option, in case if still the definitions are not getting updated please provide log.liveupdate

Hello,

I agree with Pete. Try rebooting the server and try applying the .jdb again.

Incase, if the issue is still not getting resolved, please upload us the log.liveupdate.

Secondly, Why not use the Symantec Liveupdate Administrator?

Here you would be able to update more than 20 machines in one go and that too automatically.

LiveUpdate Administrator (LUA) creates a local repository of the content and product updates available on the public LiveUpdate (LU) servers. Under the right circumstances, LUA can be used to minimize the amount of external bandwidth needed to update Symantec products in large, highly centralized networks.

The main reasons for installing LUA are:

• Testing content updates before distributing them to prdouction environments
• Reduced bandwidth utilization when updating unmanaged Symantec products
• An internal failover mechanism for updating managed Symantec products
• Consolidated management of updates for multiple Symantec products in secure environments

Check these Articles:

When to use LiveUpdate Administrator

http://www.symantec.com/docs/TECH154896

Best Practices for LiveUpdate Administrator (LUA) 2.x

http://www.symantec.com/docs/TECH93409

How to obtain the latest version of Symantec LiveUpdate Administrator (LUA) 2.x

http://www.symantec.com/docs/TECH134809

Installing and Configuring LiveUpdate Administrator (LUA)

http://www.symantec.com/docs/TECH102701

LiveUpdate Administrator 2.x and Symantec Endpoint Protection Manager on the same computer

http://www.symantec.com/docs/TECH105076

Hope that helps!!!

Thanks Guys...Rebooting helped updating the server..