Hi,

We are unbale get IP.

We checked in SEPM logs system & we found below error

Firewall driver failed to open network adapter

Also in device manger we found that Teefer2 Miniport having exclamation mark.

SEP version is 11.0.6300.803

Have you tried running a repair on the client?

Uninstalling/re-installing?

Yes. I reinstall the client.

Even I upgrade the SEP version also.

but still persist. 

In device manager, are you able to select Teefer2 and uninstall?

You may want to try Cleanwipe. Please see this post:

How to get the CleanWipe tool (Endpoint Removal)

https://www-secure.symantec.com/connect/forums/how-get-cleanwipe-tool-endpoint-removal

Which OS do you use? If it is Windows 7 SP1, keep in mind you should have SEP 11.0 RU7 or newer (http://www.symantec.com/docs/TECH167664).

I would then suggest you to install latest build of SEP to avoid any possible known defect.

You can try this, taken from the manual uninstall guide found here:

http://www.symantec.com/business/support/index?page=content&id=TECH102286&locale=en_US

Go into safe mode:

Remove the Teefer driver

1. Click Start > Search, type cmd, and press Ctrl+Shift+Enter to start a command prompt with Administrator privileges.
2. Type pnputil -e to list the Symantec drivers in the driver store.
3. Type pnputil -f -d oem<n>.inf to remove Symantec drivers from driver store, where <n> is a number corresponding to one of the Symantec drivers listed in the previous step.
4. Type exit to close the command prompt.
5. In the Windows registry editor, navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E972-E325-11CE-BFC1-08002bE10318}.
6. Delete any keys that have a value of ComponentId that is set to symc_teefer2mp.
7. Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\DeviceClasses\{ad498944-762f-11d0-8dcb-00c04fc3358c}.
8. Delete any sub keys that have a name containing SYMC_TEEFER2MP.
9. Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\DeviceClasses\{cac88424-7515-4c03-82e6-71a87abac361}.
10. Delete any sub keys that have a name containing SYMC_TEEFER2MP.
11. Close the Windows Registry Editor.
12. In the Device Manager (devmgmt.msc), go to Network Adapters, and delete all entries with "teefer" in them.
13. Delete any network adapters to which teefer was attached.
    This causes the adapters to be reinstalled. This step must be done in order for there to be network connectivity after you restart the computer.
14. Restart the computer into normal mode.

Hi Brian,

We are facing problem on XP machine & we does not found pnputil on that system.

Hello All,

I still facing this issue,
Please let me know if someone having solution on that.