VPN certificates always state "This certificate has an invalid digital signature." on one machine

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While attempting to connect to the Windows Azure Virtual Network (and knowing all keys are installed), I always get the error message: 

A certificate chain processed, but terminated in a root certificate which is not trusted by the trust provider.
 (Error 0x800b0109)

When I investigate my certificates, I see that my FunnelFire and Root Agency certificates are both station that "This certificate has an invalid digital signature".

I have several other machines setup with these keys and with the same VPN client install, and they all work fine. I am using windows 8.1 on each machine.

azure
azure-virtual-network
azure-vpn
asked on Stack Overflow Jan 22, 2014 by Phil Barresi • edited Jan 22, 2014 by David Pfeffer

2 Answers

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You will have to install the certificate into your trusted root cert folder. This will make sure that the certificate gets registered and recognized properly.

answered on Stack Overflow May 28, 2015 by user4951079
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Although this question was asked over 3 years ago, I would like to provide an answer for others that stumble across this same challenge.

Overview: You'll need to import the .cer certificate into the local computer\Trusted Root Certification Authorities.

Steps:

  1. Open the Azure VPN .exe file (I use 7-Zip)
  2. Extract the .cer file
  3. Import the .cer file into the local computer\Trusted Root Certification Authorities
  4. Connect to the Azure VPN
answered on Stack Overflow Dec 4, 2017 by vXE

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