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« on: March 01, 2018, 05:43:29 PM »
This may not necessarily be your issue but I use a macbook pro with no ethernet port and use the adapter.
My home network is on 192.168.1.x and my Christmas light controllers are all on 192.168.2.x and each one has a fixed IP address and everything communicates nicely.
However, I have noticed that if I have my laptop wifi on and connected to my home network and my ethernet port is connected to the controllers, with the wifi still on I can't communicate with the controllers. As soon as I turn the macbook pro wifi off, it all connects to the controllers happily.
I still get a green light symbol next to the ethernet in the network preferences when the wifi is also on as if it's connected fine, but won't actually be able to access the controllers until the wifi on the macbook pro is turned off.
I will have to check tonight with my older mackbook pro that has an actual ethernet port to see if it can talk to the controllers even if the laptops wifi is on or not.
Anyway, just a thought.