Flexible Client Access, configuration for 10.21.xx and 10.31.xx firmware tracks
Clients are unable to connect to the ExtremeWireless Access Points.
Access Point radios are not sending out beacons (seen in Wireless packet captures).
ExtremeWireless appliances (controllers)
IdentiFi appliances (controllers)
firmware 10.21.xx, 10.31.xx
For the AP39xx platform, Flexible Client Access (Airtime Fairness) reserves airtime in relation to the configured distribution. When configured for “100% airtime”, the WLAN services which have it enabled will share within that allocation, but leave no reservation for non-reserved WLAN services (FCA not enabled), therefore resulting in limited radio access time.
WLAN1 and WLAN2, with both configured for Flexible Client Access enabled (and the default 100% airtime configured):
Both WLANs will share the airtime available for any MU (mobility user, or client) connecting to these WLAN services.
WLAN1, with Flexible Client Access enabled, and WLAN2, with Flexible Client Access disabled:
WLAN1 will have all (or a very high amount of) airtime for any MU connecting to this Service.
WLAN2 will have no airtime (or VERY limited airtime) for any MU connecting to this Service.
Issue resolved in 10.31.03 or higher.
Pre 10.31.03 workaround: 10.21.xx and 10.31.xx configurations:
For deployments with AP39xx, do not configure the Flexible Client Access policy to ‘100% Airtime’. If configuring ATF/FCA, select a maximum Fairness policy “Mostly airtime”. That translates to a 75% airtime reservation, which should never be exceeded, ensuring that the WLAN services configured with FCA/ATF do not starve out non-prioritized services (retaining 25% airtime budget).
In the ExtremeWireless appliance (controller) GUI, please go to: