Is it on a network with a DHCP server? By default an AP will use DHCP.
Check the DHCP lease table for your AP's MAC address.
KBA-2720 describes how to configure a Static IP address, if you want to pull your AP, factory
default when connected to your PC again...
A new or factory-defaulted AP has IP address of 192.168.0.1 with admin login credentials uid=super, pw=sp-admin.
You can follow these steps to configure the AP with a new IP address, prior to deployment if needed.
Step 1:
Pre-configure a PC LAN interface with 192.168.0.x (any but .1) and connect Eth cable to AP.
Step 2:
Use an SSH application (ie putty.exe) to open a session to AP (192.168.0.1). Login with admin credentials.
Step 3:
Set a static IP address with "set ipaddr" command. An example resetting an AP's IP address to
default would be:
set ipaddr wan vlan 1 192.168.0.1 255.255.255.0 192.168.0.254
or
Step 2:
Use a web browser and open an HTTP session to the AP's IP address 192.168.0.1. Login with admin credentials.
Step 3:
Thru AP WebUI, follow configuration screen options:
Configuration >> Internet >> IPv4 Connection Type:Static IP. Enter IP address, Subnet Mask,
Default Gateway IP, and click on Update Settings.