My users have suddenly started getting this error when trying to connect their VPN after not having a problem. We do not use certificates to authenticate, we use a pre-shared key. Our settings are as follows -
vpn.goptions.co.uk - our VPN link, the only certificate involved is a wildcard one we own (*.goptions.co.uk) which we recently had issues with because it was revoked by Godaddy without any warning - but not sure how this affects our VPN i.e. where would I renew the certificate in NPS?
We use L2TP/IPSEC with MS CHAPV2.
When you connect to it and try username and password, very quickly you get the "Error 766 A certificate could not be found. Connections that use the L2TP protocol over IPSEC require the installation of a machine certificate, also known as a computer certificate"
I have a diagnostics log but will not attach for now as it is rather large and not sure if needed.
I'd be very grateful of any assistance here.