I've got a weird one. We have an old (Non-responce) IO Gateway, 4 port gateway style, not din rail (V1.05). We are using it on set for "light switch gags". Everything works great from the Gateway to the switch, it registers every change from open to close. The weird part is when we connect it to one of our stage infrastructure switches. The gateway goes in and out of connection. In Concert it will appear and then go offline, over and over. All of our stages are built with Luminex Gigacore switches running the current firmware for that switch. If we add 1 Pathway Via 12 switch inline between the IO gateway and the Luminex gear everything works fine. Is there a multicast stream from the IO Gateway that Luminx needs to be told to pass that the Pathway does natively ?