Resolved! AP230's eth0 can't work as access-port.
Hello , AP230/10.0r512dc/2A Eth1 : Uplink Port.Eth0: Access Port. Client (Andriod) can't connect to the eth0 . show interface eth0:Parent interface=none;Mode=bridge-access; Mac learning= enabled; Admin state=enabled;WEB server=disable; NAT suppor...