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Re: [Openvpn-users] Today (8/14/2007) Microsoft update broke all Windows OpenVPN setups!

  • Subject: Re: [Openvpn-users] Today (8/14/2007) Microsoft update broke all Windows OpenVPN setups!
  • From: "Marco Castillo" <mabcastillo@xxxxxxxxx>
  • Date: Thu, 16 Aug 2007 09:51:24 -0600

Dear Andrew:
  I have almost 50 sites up using OpenVPN with a site-to-site configuration using windows XP. Yesterday all the computers have installed the latest update from Microsoft (including all the ones you mentioned). OpenVPN continues working well!!.
  Fine piece of software this OpenVPN!!



On 8/14/07, Andrew Scherpbier <andrew@xxxxxxxxxxxxx > wrote:
I've been getting bombarded with complaints from my remote users that
their VPN no longer works.
The setup:

Debian GW with OpenVPN 2.0.9-8
Windows XPSP2 clients use OpenVPNGui 1.0.3 (with OpenVPN 2.0.9)

We've been using this setup for a long time, but today things started
breaking, but only for windows users.
Mac and Linux users are still connected, no problem.

The symptoms:
On the windows machines, the route to the office network doesn't get
installed when OpenVPN connects.

Since this started happening this morning, and I've had several windows
boxen get windows updates, my suspicions when there.  Indeed, after a
system restore to *before* this morning's updates, the VPN works like a

I have not been able to figure out which update is the culprit, but I
know it has to be one of these:


Of those the KB938828 looks the most mysterious.

So, has anyone else seen this?
Does anyone know which specific update causes the problem?
Does anyone know any other workaround?

--Andrew Scherpbier

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