QUOTE(theninjaway @ Jul 22 2010, 06:55 PM)
change the alternative mac address on the box.
also make sure your in the system link "searching" mode of the game so xlink can detect it.
use the user interface (not the web one) and click the magnifying glass in the corner, then click the picture of a folder in the corner that appears.
it should show a picture of an original xbox with your alternative mac address.
You can use the web ui also just click on the "Metrics" tab it shows there if your box is detected. The web ui is actually nicer with the skinning options.