We have Sharepoint on a server with SEP 11. Users have reported VERY slow uploads and testing shows uploads are very slow with SEP on. When it is stopped, uploads are very fast. Are there policy settings I need to change?

Thanks

What components are in use? I would start with only AV. Also, what version of 11?

Do you see any events in logs? Installed only AV on the client and on the server?

have you created necessary exclusions?

Exclusions required to run Symantec Endpoint Protection with Microsoft SharePoint

http://www.symantec.com/business/support/index?page=content&id=TECH91287

Hello, 

On server i personally recommend only install AV component.

Have you see anything on the NTP logs

Regards

Ajin

Sorry, it seems it is on 12.1.3001.165.

All components are in use. Is there a way to disable each component only for that server?

Ful setup on client PCs and on that server. I can't find any issues in the server's Event Viewer.

It is also a web accessible server.

on that server go to add/remove programs, select sep, select modify

remove ptp, ntp, complete the install, it would need a reboot 

Remove them via add/remove programs.

Leave AV only. A reboot is needed to complete.

Ok. will see what we can do with that.

Most if not all people access that server from the intranet upload files. Is there a way to allow files from intranet?

We've narrowed it down to the NTP causing the slowness. With it enabled we get 20KB/s, without we get well over 400KB/s. So something in NTP is causing the hiccups. Unfortunately we have no clue. We've tinkered all we can, but we are getting nowhere and we can't keep the firewall disabled.

This has been an issue in the past as well with a few versions of 12.1. My suggestion is to upgrade to the latest version, 12.1 RU4 MP1a and see what the result. Generally, issues like these are code fixes.

If the issue still persists you'll need to call support and provide advanced logs as well as packet traces...

@Nathans77 something I have been personally monitoring since day one (SEP and 2007) until now is: the teefer.sys driver of which all network traffic passes through. 

http://service1.symantec.com/SUPPORT/ent-security.nsf/2326c6a13572aeb788257363002b62aa/b99e55e17effe3ae8825738c0064b923

See http://www.symantec.com/business/support/index?page=content&id=TECH216262

Fix ID: 3198871 (File transfer speeds between servers were reduced when SEP NTP is installed)
Symptom: With the Symantec Endpoint Protection firewall enabled, file transfer performance slows.
Solution: Implemented a kernel traffic cache in the Teefer driver to improve performance.

Concur with _Brian to upgrade to the latest SEP 12.1.4a of which SEP 12.1.4.1 is for your clients/servers.

We will look into that upgrade.

We have made changes by disabling NTP and the Sharepoint up/download speeds skyrocketed as well as Backup Exec speeds