Getting Authentication request became stale, challenge sent, no response received from client when using a Apple device using 802.x OSX 11

[Carlos_Maldona2]

Authentication request became stale, challenge sent, no response received from client when connecting a Apple phone using OSX 11 with 802.x. When switching from one NAC to another, the user has to forget network and re-authenticate. It's happening to most Apple phones.

[Bin]

MFP is under the privacy tab of WLAN Services menu.
https://gtacknowledge.extremenetworks.com/articles/How_To/How-do-I-configure-MFP-Management-Frame-Pr...

Best regards,

[Carlos_Maldona2]

Yes, they are able to connect on non 802.x. Where to I find Management Frame Protection?

Thanks

[Bin]

Hi Carlos,

I known that there are some general network connect issue on iOS 11.

Apple device with IOS 11 having general network connect issues
https://gtacknowledge.extremenetworks.com/articles/Solution/Apple-device-with-IOS-11-having-general-...

Can you confirm whether your Apple devices are able to connect properly to non 802.1X authenticated WLANs (open or PSK)?

Also, please try to disable either "Management Frame Protection" or "Fast Transition" and confirm whether the devices are able to connect properly.
If it is not helpful, kindly request you to open the case to our GTAC.

Best regards
Bin

[Carlos_Maldona2]

AP are 3610, 3715, 3825. SW 9.21.12.0005. it only happens with most Iphones with OSX 11. I have a iphone 7 plus with 11.0 and my works fine. It happens on 5Ghz.