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Mike BroderickFlag for United States of America

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2012 RAS Failed to apply IP Security on port.

I am getting many errors in the event log similar to:

Failed to apply IP Security on port VPN0-34 because of error: A certificate could not be found.  Connections that use the L2TP protocol over IPSec require the installation of a machine certificate, also known as a computer certificate..  No calls will be accepted to this port.

I look at the Certificate Store for the local machine and there are no certificates. Could this be the problem and how to fix it.

I have a SBS 2003 domain that I am adding 2 Win2012 DCs that will someday replace the 2003. One 2012 server has a couple of certificates in its local store. The other one doesn't and is getting the above messages. Both 2012 servers are fresh; I can remove and start over if this is a serious problem.

Thanks
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Mahesh
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In order to run L2TP VPN connection, server and connecting client computer both should have computer certificate for mutual authentication

http://technet.microsoft.com/en-us/library/cc757207(v=ws.10).aspx

Its not serious problem. If you are using servers as windows L2TP VPN servers, then you must install Computer (Server) certificate on both servers and computer certificate on client computers, otherwise these steps are not necessary

You have to have internal CA server at least to provide certificates.

Mahesh
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ASKER

Thank you for your reply. I think the problem is there are no certificates in the Computer Store on the server that I am having problems with (SVR04). There are 3 certificates on the machine that works (SVR03). I followed the instructions given, adding an entry to group policy then running the command gpupdate. I still do not have certificates in the SVR04 local machine store. Do I need to specify the CA server somewhere? The TechNet article said on step 6 (adding the entry) that the CA server name should appear. It didn't.

FYI, my SBS 2003 server (SVR02) is the CA for the domain. I plan on changing that in the future.
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Mahesh
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Yes, The CA's (SVR02) root certificate is installed. When I request a certificate I get the error "The RPC Server is unavailable"
I've decided to delete the server (its a VM) and start over. Thanks for your help