RE: Error 786: The L2TP connection attempt failed because there is no valid machine certificate on your computer for security authentication

  • From: "Stefaan Pouseele" <stefaan.pouseele@xxxxxxxxx>
  • To: "'[ISAserver.org Discussion List]'" <isalist@xxxxxxxxxxxxx>
  • Date: Tue, 13 Dec 2005 21:28:25 +0100

Hi Tom, 

I have no access those machines at this moment. But as far as I can
remember, the whole certificate chain is correct and the clocks are
synchronized. 

Thanks, 
Stefaan 

-----Original Message-----
From: Thomas W Shinder [mailto:tshinder@xxxxxxxxxxx] 
Sent: dinsdag 13 december 2005 21:23
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: Error 786: The L2TP connection attempt failed because
there is no valid machine certificate on your computer for security
authentication

http://www.ISAserver.org

Hi Stefaan,

Is the clock correct on the machines that aren't working?

Is the CA certificate in the right place?

Tom

Thomas W Shinder, M.D.
Site: www.isaserver.org
Blog: http://spaces.msn.com/members/drisa/
Book: http://tinyurl.com/3xqb7
MVP -- ISA Firewalls
**Who is John Galt?**

 

> -----Original Message-----
> From: Stefaan Pouseele [mailto:stefaan.pouseele@xxxxxxxxx]
> Sent: Tuesday, December 13, 2005 2:03 PM
> To: [ISAserver.org Discussion List]
> Subject: [isalist] Error 786: The L2TP connection attempt failed 
> because there is no valid machine certificate on your computer for 
> security authentication
> 
> http://www.ISAserver.org
> 
> Hey guys,
> 
> On two laptops with Windows XP SP2 we get the Error 786: The L2TP 
> connection attempt failed because there is no valid machine 
> certificate on your computer for security authentication.
> 
> In the Event Security log we see Event ID's 547: 
> 
> IKE security association negotiation failed.
> Mode: Key Exchange Mode (Main Mode)
> Filter: <snip>
> Peer Identity: <snip>
> Failure Point: Me
> Failure Reason: No private key associated with machine certificate 
> Extra Status: 0x80092004 0x0
> 
> We have verified that there is a valid machine certificate in the 
> computer personal store with an associated private key. A new machine 
> certificate on the failing box isn't working either. Other machines 
> are working great. So, something must be screwed up on this particular 
> boxes.
> 
> Any idea how to solve that problem? 
> 
> Thanks,
> Stefaan
> 
> 



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