Edimax OAP900 User Manual page 18

When using an Edimax NMS AP controller, other connected APs are
automatically set to Managed APs. In the case that the AP Controller
cannot find your OAP900 as a Managed AP, you can configure the
setting manually as below:
1.
Ensure all APs including your OAP900 are connected to an Ethernet or PoE
switch which is connected to a gateway/router.
You can use your router as a DHCP server or you can later
configure your AP Controller as a DHCP server.
2.
Ensure all APs are powered on and check LEDs.
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