Symptom
When client is trying to connect to WLAN, they are unable to complete the connection.
They get disconnected due to the following delete reason
CO_CLIENT_DELETE_REASON_VRF_VLAN_MISMATCH
Conditions
AIR-CT5520-K9 as Anchor running on version 8.5.176.2
C9800-80-K9 as Foriegn running on version 17.12.2
Workaround
Delete the SVI of the VLAN that is mapped to the Policy profile of the WLAN profile to which the client is trying to connect
Further Problem Description
* Logs observed
(debug): MAC: 006b.9ea2.9e7f Link-local bridging not enabled for this client, not checking VLAN validity
(ERR): MAC: 006b.9ea2.9e7f co has vrf, anchor request did not get vrf. Reject client
(ERR): MAC: 006b.9ea2.9e7f CO Export Anchor response: VRF Mismatch
(info): Anchor Vlan: 420
(info): MAC: 006b.9ea2.9e7f Add client to exclusionlist, sending ipc to add client to client exclusion table, reason: VRF Mismatch, timeout: 180, AP: MAC: a49b.cda8.2c40
(info): MAC: 006b.9ea2.9e7f sending add exclusion list paylod to AP: a49b.cda8.2c40
(ERR): 006b.9ea2.9e7f Failed to match VRF of WLAN and SANET
(info): MAC: 006b.9ea2.9e7f Add client to exclusionlist, sending ipc to add client to client exclusion table, reason: VRF Mismatch, timeout: 180, AP: MAC: a49b.cda8.2c40
(info): MAC: 006b.9ea2.9e7f Deleting the client, reason: 324, CO_CLIENT_DELETE_REASON_VRF_VLAN_MISMATCH, Client state S_CO_MACAUTH_IN_PROGRESS
