Aironet Power Supply

[Kay M]

Hello! I have several Aironet boxes (AIR-AP1832i-B-K9), most of them have absolutely no problems but two have spontaneously stopped receiving power. We've checked the breakers, and the routers, and tested the cables all of which are functional. Is there some magic component we're missing? 

[balaji.bandi]

if the same adaptor and port working for other AP' then probably hardware failure (if no LED on the AP)

[Kay M]

Thank you for the response! We ended up figuring out that the port it's connected to stopped working. We're probably going to switch it to an empty port & hope it doesn't throw off the system. Thank you!

[balaji.bandi]

then Physical Port bad here.

[Leo Laohoo]

Cisco 1800-series APs are "cheap" and the components used reflects that. 

1800 operators who have been reporting failures (more than 2800/3800/4800/1560 combined) just contact Cisco to RMA them.