I have recently purchased an R710 on Ebay ( I have about 4 of these now and 2 T710's) I've had no issues in the past configuring my AP's but this one seems to be causing me quite a bit of trouble.
I had to connect via ethernet and SSH into the R710 to be able to upgrade the firmware to unleashed. Now that it h as been updated there are no radios active as there isn't an AP assigned to the unleashed network.
As up see the unleashed config wasn't able to setup an AP and activate the radios.
Also, the broad casting SSID is still confgure.me-xxxxx and when connected to the configure ssid it does not assign an IP address so there is no way to actually configure through it. Which is why I had so much trouble getting into this AP at first.