What model AP is it? If it's an AP that has external antennas ... and you haven't configured the AP for whichever external antennas you have purchased and connected to it yet ... then the radios will not power up and chose a channel and begin broadcasting whichever SSID's you have assigned to it. You would need to click on "Professional Install" at the bottom of the main AP tab ... and assign the antennas as would be appropriate. Another possibility, I'm not sure 100% from your question as asked ... is that you haven't assigned ANY SSIDs/WLAN Services to the radios in question ... in which case they will also not power up and select a channel They have to have "work" to do .... in order to turn on. Hope this helps ...