Ruckus Lennar R510 Not able to Configure. Not able to connect to Configure.Me-xxxxxx

[prashv]

After power outage, 1 of the 2 AP (R510) is not working. I have tried the Lennar documentation. Power ON/OFF of AP (plug-in/out of PoE). Tried to reset AP. Hard reset AP. 

It shows "Configure.Me-xxxxxx" SSID but when I try to connect through Unleashed App, it just keeps trying and not able to connect.

The firmware version also matches with other AP (which is working). Tried from connecting through ICX switch through web interface but it only shows "Disconnected" AP and can't do anything with it.

Please help!
Is there a customer care support technician for help ?