Why is "preauth" showing as part of SSID credentials when using Wifi Analyzer app?

[DonD]

When I look at the wifi SSID using the smartphone app "Wifi Analyzer" I see the security credentials as "[WPA2-PSK-CCMP-preauth][ESS]".  What is the "preauth" all about? I've never seen this before.

Using a FortiWiFi 50E.

Thank you for any help.

DonD

[bmorris]

Hi DonD,

Pre-authentication is the process of connecting to an AP prior to a roam via 802.1X authentication. Which means that you are authenticated to the AP, but not associated to it and sending your traffic to it.

[DonD]

Thanks, bmoris.  That makes sense.

DonD