Browser unable to connect local host in ionic

ionic-v1
1

I changed the port number but the browser still can’t find local host,
i think it disconnect after " ionic serve "
System:

Node : v6.9.1
npm  : 3.10.8
OS   : Windows 8.1

How can i fixed it??

2

What is your ionic info output?
What is your full command you are running and its output? Do you have an error message?

3

it was the first error
’node’ is not recognized as an internal or an external command.

and i could fixed it.

ionic info
@ionic/cli-utils : 1.19.0
ionic (Ionic CLI) : 3.19.0

local packages:

@ionic/app-scripts : 3.1.5
Ionic Framework    : ionic-angular 3.9.2

System:
Node : v6.9.1
npm : 3.10.8
OS : Windows 8.1

command to run the app is

ionic serve

output:
[OK] Development server running!
Local: http://localhost:8100
External: http://192.168.1.10:8100
DevApp: myApp@8100 on Samar

But it disconnected immediate i can see it on console window