Ok , thanks , beginning to understand 
Using my pc IP in url will send network command whereas local host is local loopback, if i understand correctly.
I will read up on this and familiarize myself with the concept, really difficult when i have no experience , but need to start somewhere.
That is correct. Your URL should point to the network IP of the Node-Red pc and not the Loopback IP(127.0.0.1 - localhost) IP
Thank you for your time, i really appreciate it.
best to assign static IP to Node-Red
ok got that
