best way to make sure that the AP is able to communicate with other
devices is to connect it directly to a computer and see if you are able
to ping and access the GUI of the AP.
Initially hard reset the AP by pressing and holding the reset
button on the AP for 10 to 15 seconds using a pin or paperclip, make
sure the AP is powered up.
Connect the AP directly to a computer and assign an IP address to the computer in the same range as AP ( eg. 192.168.0.22)
Ping the AP - 192.168.0.1 from the computer, if there is no packet
loss try to access the GUI of the AP by opening a browser and typing in
192.168.0.1 in the address bar.
If these steps are successful, then you've shown that the AP is able to
communicate with the network and working fine. Otherwise, it is
default AP is a DHCP client, so the AP will grab an IP address as soon
as it is connected to the network. When the AP is powered by PoE switch
and there is a DHCP server in the network the default ip for the AP is
. The corresponding ip can be found on the DHCP server using the MAC address of the AP .