One AP R510 not powering on

[tbraxel]

I have two R510 APs that have not been working recently. I was able to upgrade my ICX7150 switch to the SPS08095hufi and this helped me in recovering one of the APs, but the second is still not powering on. I have tried disabling and enabling the PoE on the ports as well as restarting the switch, but I can only get the second AP (on the second story of the home) to flash the red power light. 

I have tried factory resetting the AP and changing which port is plugged in, but still no luck. What are the next steps in this case?