Hello.
the customer bought a lot of Cisco AIR-AP3802E-E-Z-K9 APs but it came with a firmware version higher than the controller, so they can't communicate.
I tried to connect via console cable, but without success.
I tried the types of cables provided and nothing.
I need to connect via console to downgrade the firmware version.
Thank you very much in advance.
Unlikely that both those cables would be a problem but there are some cables and windows drivers that will not work with APs even though they work with routers etc so try another cable type if you can and check for driver updates or alternate drivers for your cable. This one works for me: https://www.amazon.co.uk/dp/B07MYQPYKR/using the FTDI driver version 2.12.28.0 (16/08/2017)