Hi,
On SW4, the default VLAN of the interface connected to the AP is VLAN 29, but the service VLAN configurated on the AC is VLAN 28. After the VLAN tag is changed to the same, the STA can obtain the IP address successfully.
[AC6605-wlan-view]vap-profile name default
[AC6605-wlan-vap-prof-default]dis th
#
service-vlan vlan-id 28
#
[AC6005-wlan-vap-profile-default] service-vlan vlan-id 29
