If you are not using an SSC (or Zeus) you are not using Pixelnet. You need to reflash your dongle to DMX as Pixelnet is proprietary to RJ's Hardware for example the Smartstring Hub and Smartstring Controller(SSC). You probable have some other brand "Pixel controller" running DMX. Perhaps if you said what Pixel controller you have someone with the same hardware will chime in to help you.