I followed the above documentation and it did not work
The AP is on a sinlge management VLAN 1
The AP's were tagged with the corresponding VLAN they are on (VLAN 4 and 5)
The switch port (MS switches) were the AP are connected to set up correctly as per the document
However the VLAN tagging did not work for me, the incorrect VLAN tag was applied to the packet
DHCP is served by the MS switches
As an example I am on VLAN 5 so get IP from VLAN 5 when I move to VLAN 4, my IP is still on VLAN 5 and doing a packet capture on the switch where the AP is connected to, the DHCP request is tagged with VLAN 5 and not VLAN 4.