RADIUS EAP/PEAP authentication problem after no issues for over a year +

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We have been running the SZ100 RADIUS option to authenticate users to our AD using a NPS.

Yesterday users were no longer able to connect. Log files on the SmartZone 100 show codes of 203 - Client failed to join. On the RADIUS server the error show wrong authentication protocol (EAP)is being used. Should be using PEAP.

Why would the SZ100 configuration change the authentication protocol?

Anybody else have this happen to them?

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