This article will tell you more about the option "As Native VLAN" found on the VLAN settings in the AP settings. We will show what happens if the option is enabled and disabled.
If you select As Native VLAN, the packets from the AP are untagged.
Set management VLAN ID as 1 and select As Native VLAN. The console shows this AP is in VLAN 1 and untagged.
If As Native VLAN is not selected, the packets from the AP are tagged.
Set management VLAN ID as 30 and clear the As Native VLAN checkbox. The console shows this AP is in VLAN 30 and tagged.