You can't daisy chain Pixel controllers. (yet) You need to use a 'Switch', which is hooked to whatever is driving your show - PC, PI, etc. The controllers each plug in to the switch via Cat5. Then your PC/PI can see all 3 of them thru the switch and talk to them individually based on their IP address. Each e682 needs to have a different IP address from the others. I try to go sequentially, for example my show PC has an IP address of 192.168.0.4. So my controllers have IP addresses of 192.168.0.11, 192.168.0.12, 192.168.0.13, but they can be random as long as they work with your system.