Symptom

With both fabric-in-a-box enabled on the Cat9K switch(es), and embedded wireless enabled (9800-SW). If Fastlane is enabled on the WLAN and auto-qos is enabled, then a SDA wireless Apple client is unable to join/connect to the SSID due to the following reason: 2023/05/26 14:03:02.534958580 {wncd_x_R0-0}{1}: [ewlc-infra-evq] [11810]: (ERR): Client MAC: a0fb.c591.180f blocklisted due to qos policy get from pm db failure for policy name voice-client-avc, pm_dir 1

Conditions

SDA Wireless WLAN configured with DNAC on Cisco Embedded Wireless Controller (EWC) on Catalyst 9300 running 17.9.3. Customer has same setup working with FastLane and 9300 running 17.6.3 and no issue. They have a common profile for all the sites. We encountered a weird behavior since upgrading to 17.09.03 where some wireless clients are getting excluded with the reason "Client QoS policy failure".

Workaround

Disable Fastlane on WLAN + in the advance settings of the WLAN and change the AutoQoS setting in the QoS policy to enterprise.

Further Problem Description