I'm having a system of 32 cisco wireless devices (Model: Cisco AIR-AP1832i-S-K9 and AIR-AP1832i-H-K9) connected to the controller cisco 2504.
Recently, up to 8 devices in this system suddenly lost signal (accounting for about 25% of the existing number). I opened it to check, there is a burning phenomenon in the circuit (as attached picture). All of these devices are just out of warranty, and when I buy I buy them in batches - which covers a lot of equipment (but someones are broken and others don't).
Have people ever encountered this situation? If yes, can you tell me the cause of this phenomenon and the direction it can be corrected? because there may be other devices that are also at risk.
Tks all
