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SEPM 12.1 Firewall is malfunctioning

Created: 06 Mar 2012 | 7 comments
Shailendra Pal's picture

Hi,

I have a SEPM 12.1 production server with 2000 client in SQL database  but my sep client is showing this message.

"firewall is not functioning correctly. your protection definitions may be damaged or your product installation may be corrupt"

Comments 7 CommentsJump to latest comment

Swapnil khare's picture

does this link helps?

http://www.symantec.com/business/support/index?page=content&id=TECH169271

Don't forget to mark your thread as 'SOLVED' with the answer that best helped you.

Sandeep Joshi's picture

Please open case with technical support as this issue is with Symnets (Symantec Firewall Driver) binding issue with the NIC and need to investigated.

STS Symantec Endpoint Protection

Dushan Gomez's picture

So how's it going so far ?

I also having this issue with my recent upgrade from SEP Client v 11.0.4 to v 12.1 RU1

Dushan Gomez
IT Manager
VCP 4 and 5 | MCITP Exchange Server | MCTS SharePoint Server | MCP Windows XP

W007's picture

Check these Threads below with similar Issue

https://www-secure.symantec.com/connect/forums/firewall-driver-not-loaded

Don't forget to mark your thread as 'SOLVED' with the answer that best helped you.

SameerU's picture

A fix for this issue has been released in the 12.1 RU1 MP1 and 11.0 RU7 MP2 versions of the Symantec Endpoint Protection product.

The steps below outline a separate workaround:

1) Uninstall SEP client from

2) Take back up of the registry

3) Delete the following keys

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\eventlog\System\Teefer3
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\services\eventlog\System\Teefer3
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\services\Teefer3
HKLM\SYSTEM\CurrentControlSet\Services\Teefer3

4) Reboot the machine
5) Reinstall SEP client.

Dushan Gomez's picture

Yes, thanks for the assistance guys.

it works after the uninstallation and seeral reboots.

Dushan Gomez
IT Manager
VCP 4 and 5 | MCITP Exchange Server | MCTS SharePoint Server | MCP Windows XP