You've got me, no WPS option!
I read through the router manual. Log into the router web UI:
- Take note of the Name (SSID), Security Option, and Pre-Shared Key (if used) selected under Setup > Basic Wireless Settings as you will have to add this setting to the DCS-933L
 - Next, navigate to Advanced > Wireless Settings and make sure Wireless On and SSID Broadcast On are checked
 
I will presume that this is the only router you presently have access to, so you'll first need to connect the DCS-933L to the router using a wired connection. Log into the DCS-933L web UI:
- Navigate to SETUP > Wireless Setup
 - Enter the router Name (SSID) in the DCS-933L SSID field
 - Select the router Security Options in the DCS-933L WIRELESS SECURITY MODE section
 - Enter the router Pre-Shared Key in the DCS-933L WPA-PSK / WPA2-PSK Settings section
 - Save the camera settings
 
If you disconnect the DCS-933L wired connection, the router should pick up the camera via wireless.