troubleshooting Question

Remote Administration Spontaneously Stopped Working after Symantec Endpoint Protection Installation

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AMP_Engineering asked on
Anti-Virus AppsSBS
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I have a new SBS 2003 R2 installation on which I recently installed Symantec Endpoint Protection V11 (my understanding is that this has replaced SAV Enterprise Edition).  After installing the client on the server, my client computers were unable to authenticate on the domain or access any of the server's shares (shared folders and printers).  When I disabled "Network Threat Protection" in the SEP client console, all users were able to log on and use the network resources as normal.  All of this configuration was done while logged into the server through remote administration (what I wrongly refer to as Terminal Services) using mstsc.exe.

About 4 days after installing SEP, I suddenly lost the ability to connect to the server through mstsc and have not been able to figure out why.  

I am thinking that this is related to the SEP installation, but I can't figure out why I would lose remote administration capability when I made no changes to any of the server's settings, SEP or otherwise.

The only time I have had a monitor, keyboard, and mouse hooked up to this server was during the initial configuration and now since my remote administration connectivity is no longer working.

If I can't solve this problem soon I guess I will uninstall SEP (much pain!) and see if that solves it.

Any ideas?
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