I want to allow my Cisco telephones 802.1X access via EAP-TLS using MIC Certificates.
If configured it similar as MikeLascha stated in his post:
https://social.technet.microsoft.com/Forums/en-US/6d78c698-a087-48cb-bc73-9566aa61bf10/using-nps-with-cisco-ip-phones?forum=winserverNAP
But I get the Reason Code 293:
The certificate is not valid for the requested usage.
How can I solve this problem?