You may have to connect the WAP directly to a computer with a static IP address assigned and access it's setup to move it's base IP address so you can access it on your network. Configure the machine for 192.168.1.2 with a subnet mask of 255.255.255.0, restart and you'll be able to connect to it and configure it.
There are instructions for doing that in the manual. Here's a Manual Link
There are instructions for doing that in the manual. Here's a Manual Link