Windows 10: VPN ikev2: Error 798 "A certificate could not be found that can be used with this...

Hi,I have configured an IKEv2 VPN on Windows 10 with EAP-TLS authentication using a user certificate issued by our private CA. However, when I try to connect, I first get the error "798: A certificate could not be found that can be used with this Extended Authentication Protocol." Then, when I retry, it prompts me for the password corresponding to the private key of the certificate and the connection is successful.I have tried to establish the connection using rasdial, and the issue occurs every time I close the dialer and reopen it.I have checked the CAPI2 event log, and there is an event ID

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IKEv2 Using Wrong Machine Certificate

I have two IKEv2 VPNs setup on my Surface Pro 4, both use Machine Certificates.

There are two Machine Certificates on the device, one for each VPN.

One works absolutely fine, however, the other sends the wrong certificate and as expected gets rejected. "IKE authentication credentials are unacceptable"

The server sends a certificate request for the correct CA,

Windows sends certificate requests for its full list of trusted CAs, including the correct CA,

Windows then ignores the certificate requests and sends the wrong Certificate (i.e. the one for the other VPN).

Installing the same machine certificate onto my Android Phone, using StrongSwan I can connect fine to both VPNs.

Any ideas on how to get Windows to respect the server's certificate requests and send the right certificate?

 

Ikev2 VPN Internal authentication error

Hi everyone,
I have windows 10 pro 20H2,
I have a problem with my Nordvpn protocal IKev2/IPsec as you see in screenshot.





Sometimes when I want to connect with Ikev2 it gives error named: Internal authentication error. But just after using browser or restarting pc ,the error get fixed and when I connect it then it connected (see picture).



I tried IKev2 of protonvpn free by installing its certificate and its work fine when ever I connect it,it always connect but nordvpn not. I tried connecting nordvpn just after disconnecting nordvpn but no success.

I also tried different locations & countries but all have same issue.

Please tell me why there is authentication error ,how I fix it and whether its windows ikev2 problem or nordvpn ,I followed their full tutorial to install ikev2 from nordvpn and this problem occur everytime even after clean install windows so I have to wait sometime before successfully connecting to VPN

 

IKEv2 Using Wrong Machine Certificate

Did you get it to work? Whenever I have more than one personal certificates installed, Windows picks randomly one certificate for IKEv2 vpn.