This is a tutorial on how to connect to NordVPN servers on Windows 8 using the IKEv2 protocol. Note: due to Windows system configuration features, it downgrades the cypher to a weaker 3DES-CBC encryption cypher. Certificate installation 1. Download our NordVPN certificate – https://downloads.nordvpn.com/certificates/root.der Note: Your browser may try to save the file into its own … تابع قراءة IKEv2/IPsec