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RADIUS authentication fails with certificate error

Symtoms

Windows fails to authenticate a wireless connection attempt with error:

The connection attempt could not be completed

The credentials provided by the server could not be validated. We recommend that you terminate the connection and contact your administrator with the information provided in the details. You may still connect but doing so exposes you to security risk by a possible rouge server.

Details
Radius Server: radius.jumpcloud.com
Root CA:          Go Daddy Class 2 Certification Authority

The server "radius.jumpcloud.com" presented a valid certificate issued by "Go Daddy Class 2 Certification Authority" is not configured as a valid trust anchor for this profile. Further, the server "radius.jumpcloud.com" is not configured as a valid NPS server to connect to for this profile.

Cause

The client wireless configuration is using EAP/TTLS and the JumpCloud radius certificate is not in the client's trusted certificate store.

Resolution
  • Set the authentication method to PEAP.  The RADIUS server certificate should auto-negotiate, installing the certificate on the client will not be necessary.
OR 
 

Last Updated: Oct 13, 2017 11:07AM MDT

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