Hi,
>>somehow user can connect to WiFi without using certificate
What's your mean of this? The certificate is not used by the client. It's used by the server to prove its' identity.
The server sends the certificate to client and the client validates the certificate.
Best Regards,
Steven Lee Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Support, contact tnmff@microsoft.com.