Thanks Flow....but no go!
I can confirm the M5stack is connected via WiFi to the modem - that part works OK.
It just does see the Internet.
In Setup mode "Select WiFi" there is a number appearing which seems to be associated with a WiFi phone I have connected to the same modem. Starts with 09......
Any ideas on why that appears on the M5stack and how I can edit it if required?
Even when I hard wire into the modem and enter 192.168.4.1 on my Browser, this eventually times out as it doesn't find anything associated with that IP.