We have purchase a lot of MR76 APs lately to expand / upgrade our Wi-Fi networks on two sites. Most of them were setup and installed ok, however I received one device from another site that is not loading up.
Short description. Meraki AP MR76 LED light flashes in all different colours, then stops on orange light for a minute or so before another round of changing colours. AP is connected to Meraki MS 125-48LP, we have tried a few different Meraki switches at original site with same result. Sometimes switch shows that there is a PoE device connected and power consumption, however there is no data usage at all. Sometimes switch shows port disconnected. I assume AP is rebooting itself continuously. AP is claimed to dashboard, it was connected to the dashboard at initial install, because dashboard says "Unreachable for about 1 month". That means AP was working ok for a short while, but developed a fault afterwards. I tried to push "Factory reset" button, but that didn't make any difference.
I wonder what can I do to troubleshoot it further. Can I try to reload firmware while connected AP to PC? I have PoE injector that would allow me to power on AP and same time connect it directly to PC.
Any advice is appreciated.