R1D2 wrote A serial port is a RS232C interface, which allows you to manage the EAP even if the network has become totally unusable due to mis-configuration (e.g. b/c you changed some network settings...

Yest, thank you. it's not clear to me what is the purpose of this port. When I connect it, my PC/laptop is not able to feel it.

Model : Hardware Version : Firmware Version : ISP : I was expecting to use the console port as ethernet port, but is not working. By the way, I connected internet port to my router and WiFi is...