For people suffering from this, a clean workaround is to change the VPN configuration as follows:
- Edit your VPN connection - "VPN" tab - "Advanced" - "TLS Authentication" tab - Change the "Server certificate check" to something that is *not* "verify subject partially".
In my case, "Don't verify certificate identity" was chosen since the server's public key is checked anyway.
For people suffering from this, a clean workaround is to change the VPN configuration as follows:
- Edit your VPN connection
- "VPN" tab
- "Advanced"
- "TLS Authentication" tab
- Change the "Server certificate check" to something that is *not* "verify subject partially".
In my case, "Don't verify certificate identity" was chosen since the server's public key is checked anyway.