Anybody know how to go about doing this?
Apparently, this fixes issues between Alexa and Harmony.
TCP resides on the Transport layer (4th layer) of the OSI model. Off-the-shelf switches and routers reside mainly on layers 2 and 3. You need a customized router to do that.
You can buy a $40 Pi and a USB dongle to build a router with that feature. Of course, this requires some time and knowledge.
