development server is not started while scanning the QR code in Expo client application

Description

I recently started to learn React-Native and created a CRNA project. whenever I scan the QR code in Expo App , the application is not started on my android device though my mobile is connected to same wireless network as my PC (windows)

Expected Behavior

I tried to run “npm start” in command line.code compiled successfully and QR code generated in command line.Whenever I scan this code through Expo app it is not starting my apllication in android device.

Observed Behavior

I got following error

Something went wrong.
could not load exp://192.168.*.**:19000. Network response timed out.
error-log---
uncaught error:java.net.SocketTimeoutException: failed to connect to /192.168.*.**(port 19000) after 10000ms 

Environment

• react-native-scripts:–react-native-scripts@0.0.31
• react-native:-- react-native@0.44.3
• expo:-- expo@17.0.0
• node -v:v6.10.1
• npm -v:3.10.10
• yarn --version:N/A
• watchman version:

1. Operating system:windows-10
2. Phone/emulator/simulator & version:android v 6.0

[San10694]

@FredyC I got an alternative for same problem please download “Expo XDE” (desktop application) it will definately solve your problem. following steps you need to follow 1-download Expo XDE for your appropriate OS(ie. windows or mac) from https://expo.io/ 2-open Expo XDE and you will find your CRNA project , click on specific project you want to run , 3- click on the gear icon in address bar and select host as a Lan , here you will find your “ipAddress:host” paste this address to your expo mobile App in explore section and if everything is right then you will get your application running on your mobile … hope it will help you

[danielkcz]

Ok, I think I’ve found the culprit. I have a Docker installed which has its own network adapter. For some reason the Expo picks this virtual network over the real one. Using env variable as @brentvatne suggested works, but it’s totally cumbersome solution.

I am wondering if this could be somehow configurable per project.