For your Android phone make sure...
1. You are on the same WIFI network as your PC and not accidentally connected to a neighbor's WIFI or on 3G connection. It will only work if both PC and Android are in the same network.
2. Verified from a android browser you can hit http://192.XXX.XXX.XXX:6000
whatever your IP address is and you should see "200 Intelliremote Server" and an error come back in the browser. If it does then Intelliremote should be working if you get a time out or a "Page not found" that means your Android cannot "see" your PC.
3. Is your PC on a wired connection? Sometimes depending on your router it might segment traffic so your WIFI Android can't see your hard wired non WIFI devices.