Endpoint Protection

Hi.  I'm a newbie to networking.  Our company purchased SEP 11R5 for employees to use on their home computers in unmanaged configuration.  They gave me two disks on about 520MB with SEP11R5 and one with SEP Manager.   I have a new Dell with Windows 7 and installed SEP from disk one.  I did not install the SEP manager.  The antivirus and live update seem to be working fine and I can access the internet and print wirelessly but I can no longer see this machine from other machines running XP on my windows home network (default workgroup settings).  Home networking worked fine with the windows firewall before I installed SEP.   What are the firewall configuration settings I need to use the windows network and do I need to install the manager on this unmanaged client machine?  Thanks.

Bubba

First, no you do not need to install the manager.

Do you have Network Threat Protection installed? If so, as a test, disable Network Threat Protection (right click SEP icon in task tray and "Disable Symantec Endpoint Protection") and see if that clears up the issue.

The SEPM needs to be installed only if you wish to manage the SEP clients centrally. As far as Unmanaged clients are concerned the installation of SEPM is not required.

There are 3 features of endpoint. Antivirus & Antispyware , Pro active Threat Protection, and Network Threat Protection. The AV/AS feature is self explanatory, the PTP is a real time protection from threats by monitoring their behavior,  and the NTP feature is similar to that of a Firewall and it can block both incoming and outgoing traffic. The NTP feature needs to be tested thoroughly in a TEST environment before its implemented on a Production environment. For the time being start with installing only the AV/AS and then the PTP and lastly the NTP this would help us narrow down on the issue.

For troubleshooting the firewall, start by adding an "Allow All" rule to the top of the rules list.
Test your Windows networking functionality then move the the "Allow All rule down the list one rule at a time while testing. Once your network issues reappear, then you know the rule above your "Allow All" rule is the problem.

Modify the known rule or create a new rule above that one that  will allow your local network traffic.

If I remember correctly IPV6 is used with Windows Home Group