Title: 'Symantec Endpoint Protection Client configuration changes for performance optimization'
Document ID: 2007102311173048
> Web URL: http://service1.symantec.com/support/ent-security....

Title: 'About Windows Firewall and Symantec Endpoint Protection's NTP'
Document ID: 2009120816110248
> Web URL: http://service1.symantec.com/support/ent-security....

Best Practices for Installing Symantec Endpoint Protection on Windows Servers
http://service1.symantec.com/support/ent-security....

Also on the server what components of SEP is installed?
 
Only keep AV and AVS and see if that helps

AAP, PTP, NTP all three components but by default PTP is Off and all policy are default one 

Remove NTP and PTP and check the diffrenec, Is it same or diffrenet?

so no sep client on SEPM

Stop the SEPM and embedded database service  and then try

Which is the version you are using?I mean full version..

yes full version b4 installing i have copy 1 gb file from network it copied in 3 min but now when i try to copy a 130 mb file it taking nearly 135 min

Then I think it is something else issue.You do not having SEP client in the computer ,right?

yes i have install sepm and deploy sep client  and it when to very slow when i am  trying to copy any file from network.
othere servers are working fine there is no problem with switch are cable

What is the version of SEP you installed.Tell us full version.For e.g. 11.0.4000.2295?Which are the components of SEP you installed?

version 11.0.6 with AAP, PTP, NTP all three components but by default PTP is Off and all policy are default one

Remove PTP and NTP and see any difference is present?

kindly help on above issue plz

kindly help on above issue plz

Do you removed NTP and tried?