If I connect my aqara hub to the ethernet port of AP11D , the port(link) is flapping (up/down),
I have the same situation when the hub is connected to my tp-link switch port with auto-negotiaton,
but when I set it manually to 100M an full-duplex, the port is continuously up.
I know, this is not a real failure of AP11D , but there some problematic client hardware we are living with.