So after getting my three P2 controllers up and running a few weeks ago, a couple of nights ago I thought I would do some testing with lights and hooked them up to my laptop via my 8 port ethernet switch. But what happened was that two connected and one didn't. So I changed the cat5e cable.... 5 times!.. with no joy. Also tried the cables that worked with the other controllers. So next I hooked the troublesome P2 directly to the laptop and low and behold I get a connection and can fiddle around with the P2's setting. However, when going back to the switch... no joy. The lights of the port on the switch where this P2 is connected just flash and never go solid. I have tried two different switches with the same results. Any bright ideas as to why this could be happening?