As a complete neophyte, I reached the end of my problems solving very quickly. New Lennar home with ICX switch and R510 WAPS - 3 total - 1 on each level of home. All seemed to configure OK but the 2 Non-Master WAPs won't come on line. I have unplugged from switch several times - after leaving alone for hours and they both, most recently, have been flashing fast green on the CTL light - indicating "Receiving configuration or image upgrade. Looking at the Unleashed mobile APP Master Ap broadcasting as expected. Other 2) R510 showing office althought they display serial number and MAC address....... Thoughts ?