Many thanks for the help,
I now understand (after reading the ESS complicated instructions many times)that the ESS takes control and I have no need to access Internet from my cnc laptop.
However I find the Warp9 instructions so complicated because it sends you from one link to another with no end!!!
I removed Mach3 and Warp from my laptop and started install again, this time including the Mach3 plugin which is now installed in the Mach3 plugin folder and all went fine and got a message that Warp9 is successful. But again when I start Mach3 it says the IP address is wrong and when I input the factory default address 10 9 9 9 still doesn’t get it.
Quite frustrating