Meru Controller not see AP's

Hello, 

I have trouble with my Meru Cotroller and AP's. I have MC1550-VE and five AP1010. Cotroller see only 2 AP's. I have connected AP's and controller into cisco switch SG200. At the beginning I try to do something in default settings, next i try with trunked, access port, changing VLAN's and nothing .

When I setup this two AP's with address IP in the same class as controller, I see one of them as Disable, offline but one more AP appears(other). On cisco switch I disable power on AP's port what can i see. And hapend thing that i don't understand, one more AP appear.

Please for help