Endpoint Protection

Hi

I have setup a SEP 12.1.2015 client package for a SEPM upgrade group.

I have removed NTP and PTP for this package.

The old machine is running SEP client 11.0.7000.

I then add this machine to the SEPM upgrade group. The client gets upgraded fine. (without the NTP/PTP).

I have rebooted few times... still good.

Few hours later i reboot again, and whammo.... the network is dead. The LAN or Wifi... both are no good. Ipconfig gives me nothing. No IP.

I have done this on couple of machines so far. Dell Latitude E6400 and E6440.

E6400 running Intel 82567LM. E6440 on Intel I217-LM.

Havent tried this on Broadcom chip yet... got to look for a model with one of these.

Is this a known issue? If so, is there a better version to upgrade to that is more stable?

Also, how to fix the broken network?

Thanks, DM.

Well I would first try the latest SEP version, 12.1 RU4 MP1. You're four versions behind.

Hi,

Try testing with few system before you apply to all.

It is not reported issue it is problem with Teefer driver which causing the problem.

Try latest version on few system and check the connectivity.

You can upgrade Latest SEPM 12.1.4 MP1,

Previous we have received same problem in another thread

https://www-secure.symantec.com/connect/forums/slow-network-after-upgrading-endpoint-protection-1212-mp1from-previous-version

Ok. I have logged a case for this one.

It seems to be a case with old Teefer driver not being removed when version 11 is being upgraded by 12.1, and without the NTP/PTP.

DM

Thanks All.

In the end, we managed to resolve this issue by putting in an ALLOW rule in the firewall for the offending blocked traffic. Much safer way i think.

DM