What lights do you see on the back of the IdentiLynx camera? If connected properly, the LED should be green and flashing.
If you don't see the green flashing LED, check the POE power adapter. The LEDs on the power adapter should be green. If you see red LEDs, then try swapping ports by unplugging the two Ethernet cables, and plugging them back into the corresponding port.
If all the connections are good, then you may need to unplug the IdentiLynx camera and allow it to reboot. Remember to shut off the capture in FinishLynx for any cameras that are already connected. You can also unplug the other cameras and allow FinishLynx to boot just the IdentiLynx camera.
Hope this helps. -- Justin