I have used this old HP guide for configuring 802.1x on HP printers for EAP-TLS authentication against Meraki MS switches and Microsoft NPS server. http://h10032.www1.hp.com/ctg/Manual/c00731218 Basically, you create a custom certificate temple in the Microsoft CA server with all the requirements, create a user in AD to load the certificate against, have the device generate a CSR, have the CA server sign that request as the user, and then install the certificate onto the device. ps. I tend to setup the CA with a root certificate that is good for 20 years. CA certificate roll over can be very painfull. pps. I tend to change the certificate template so it can issue certificates for 10 or 20 years. Then the certificate is valid for the entire lifetime of the IoT device and you don't have to bother with processing the renewals.
... View more