Problem: AdonisJS API not accessible from React Native (mobile device) even with LAN IP

[prince0xdev]

Problem: AdonisJS API not accessible from React Native (mobile device) even with LAN IP

Hello AdonisJS team 👋,

I am currently trying to connect a React Native (Expo) mobile application to my AdonisJS backend, but I am facing an issue where the API is not accessible from external devices (mobile phone), even when using my local network IP.

Environment

• AdonisJS version: (please fill in)
• Node.js version: (please fill in)
• OS: Windows 11
• Frontend: React Native (Expo)
• Network setup: PC and mobile connected to same WiFi / hotspot

---

Current configuration

.env

HOST=localhost
PORT=3333

CORS_ORIGIN=[[http://localhost:3000,http://localhost:5173](http://localhost:3000,http//localhost:5173)](http://localhost:3000,http://localhost:5173)

---

### Server start command

```bash
node ace serve --watch

---

API base URL used in React Native

http://192.168.x.x:3333/api/v1

Issue

When I try to access the API from my mobile device or even from another device on the same network, I get:

• Network Error in React Native
• Connection refused when accessing via browser:

http://192.168.x.x:3333

However, the API works perfectly on:

• http://localhost:3333 (on the same PC)

What I already tried

• Set HOST=0.0.0.0 in .env
• Verified correct local IP via ipconfig
• Disabled firewall temporarily
• Ensured both devices are on the same network
• Updated React Native API base URL to use LAN IP

Still, the server is not reachable externally.

Question

Is there something additional required in AdonisJS to expose the server to LAN devices (React Native / mobile testing)?

For example:

• Additional configuration in server.ts or app.ts?
• CORS configuration for mobile?
• Special binding requirement for Windows / Node.js?

Any guidance would be greatly appreciated 🙏
Thank you!

It's my first time using Adonis, it's nice!