OpenVPN unable to connect due to Peer certificate verification failure
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I inherited this set up, and only recently ran into this problem where our OpenVPN will no longer connect due to the certificate error. Unfortunately I am quite a distance away from the box, and using our back up VPN set up I can no longer even connect to the firewall via IP address. So just looking for guidance on what I can do to get this working again.
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@JJLowry
Check in the server, what's the cause of the failing.
Maybe the client certificate has expired?Do you have any access to the client site?
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@viragomann Thanks, the problem was the OpenVPN cert had expired, but I could not get to the box to connect. We have a few different firewalls that are supposed to have a tunnel between each of them, but none of them were working. Even had someone onsite at the physical location of the Firewall connect to the Firewall directly via Ethernet and they couldn't connect. Tried to use the Console connection, but couldn't see what port in the Device Manager, tried guessing a few but was still not able to connect via PuTTY. Fortunately today at a different site the tunnel there was working and I was able to connect and refresh the certificate.