Cisco WAP125 - Incorrect IP Address Issues; Rebooting and Factory Reset

Step 1. Press the Reset button for more than 10 seconds until the lights go off.
Step 2. Release the Reset button when the lights turn back on.
Note: In both above images, the WAP125 is pictured.
Reset through the Web-based Utility
Step 1. Log in to the web-based utility of your WAP and choose Administration > Reboot.