Ok just to update this. I have managed to get my sub onto my 1st gen firestick through a kodi add on my provider offers. It is working perfectly no issues. Which is a plus point finally!
Although I would still prefer to use it through my zgemma box as it is more user friendly to navigate.
Has anyone any other ideas as to what settings in my box could be jamming the stream after a couple of mins? My adaptors are rated to 500mbps but if think it would be better buying cat 7 cables I will try it?
Although the firestick is using wireless connection and you would have thought it would be slower than the plugs?? It works fine as I said