There are many solutions to that problem.
Use a switch that connect to both networks/switches using two vlans. One for each network (MA-Net/Art-Net).
The port to the laptop to have access to both vlans.
DO NOT BRIDGE THE TWO NETWORKS using the third switch, because of missing vlan configuration!
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Midi to Art-Net converter - get your Midi's easily connected to your software/consoles.
How easy? Watch this video: [
www.youtube.com]
Free download and support board: [
quantendrehung.de]