AX200 802.11r windows 10 PMK Caching

[Jason_jm]

We are currently working an issue with our Meraki WiFi and our Windows 10 devices. We have windows configured with 802.11x machine certificate authentication. We have discovered an issue that causes the client to disconnect and reconnect based on a certain set of actions.

We have our clients configured with Fast roaming enabled. (PMK Caching and Preauthentication). When the client successfully connects to the ap, it will stay connected indefinitely. At the pre-defined interval for PMK caching (12 hours) it will seamlessly renew itself. We see an event on the ISE server backend ( successful auth) and a successful authentication in the meraki  portal. Never disconnects. 

If the client roams among AP's, the roam is flawless. The client never disconnects, is never forced to re-authenticate (not activity in the ISE logs and no authentication event in Meraki) only association or disassociations as expected.

However, if the client has been roaming, when the PMK cache expires (12 hours), the client fails to renew seamlessly. We can see in the event logs that is sends an EAP start command but the AP immediately de-authenticates the client. The client tries 3 more times to authenticate, fails and then resets the connection. Not such a big deal, except if this process occurs during a Teams or Zoom call, there is a network drop that is obvious to the end user. 

We have worked with Meraki and Microsoft support, have seen the issue on Dell and Surface devices. Everyone is pointing to the Adapter drivers. We have tried every driver that Intel releases as soon a new one comes out. 

[CV-GED]

Hello,
any news?

We also have the problem with all Dell laptops (Latitude 9520, 7320, 5520, 5530; Windows10/11 & Intel(R) Wi-Fi 6 AX201) und Meraki APs (WPA2-Enterprise, 802.1x).

Regards,
CV

[Jason_jm]

We never found a solution. We ended up make a hard wire the default connection for our end users when they are in the office connected to Meraki wifi.