In the assistant click on refresh adapters. From the drop down, select the network the pixlite is connected to. For example, my home network (wifi) is 192.168.1.69, but the router for the pixlite is 192.168.8.60.
The other thing to note is that I changed the Pixel width from 252 to 100. Even though there are 300 LEDs on this 5 meter strip of WS2811, this type of LED strip controls the LEDs in groups of 3 at a time. 300/3 = 100. If you want more control over LEDs, there are other strip designs that let you control 1 pixel at a time.
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