I just received two 1510 Mesh AP's and it appears that one is DOA. I plugged in one AP and the Power Injector LED is solid and the AP registers with the WLC. I plug in the other one and the Power Injector LED goes to a fast blink, the ethernet port on the switch does not turn on and the AP obviously does not register. I tried different Power Injectors with no luck. Does anyone know if this is an indication of a bad AP?