Help with client certificates

I'm trying to implement the use of client certificates on Firepass. I've got my root certificate installed and have issued a client certificate to a "test" user. Following the guidelines from SO8095 I've installed the client certificate using the mmc to both Certificates - Current User and Certificates - (Local Computer) under the areas of personal certificates and trusted root certification authorities. And, under the master group authentication I've checked the box to rquire client certificate for user logon.

 

Did I miss a step somewhere? When I try logging on with my test user it fails with an error of "unable to find client certificate". I've tried setting a pre-logon sequence to check for client certificate as well, but it's unable to find the certificate either.

 

Any help is greatly appreciated.

 

Thanks,