Software⏱️ 2 min read📅 2026-05-31

How to Fix: How to solve SocketException: Failed host lookup: 'www.xyz.com' (OS Error: No address associated with hostname, errno = 7)

SocketException: Failed host lookup: 'www.xyz.com' (OS Error: No address associated with hostname, errno = 7) error in Flutter app on Windows.

Quick Answer: Check your internet connection and DNS settings. Try using a different DNS service or clearing the DNS cache.

The SocketException: Failed host lookup: 'www.xyz.com' (OS Error: No address associated with hostname, errno = 7) error is typically caused by a misconfigured DNS or an incorrect network connection. In your case, the issue may be related to the AVD virtual device from Android Studio.

🛑 Root Causes of the Error

  • Incorrect DNS configuration or network connection in the AVD virtual device.

✅ Best Solutions to Fix It

Method 1: DNS Configuration

  1. Step 1: Open the AVD virtual device settings in Android Studio and select the 'Edit' option.

Method 2: Network Connection

  1. Step 1: Open the Command Prompt as an administrator and run the command `ipconfig /release` to release any existing network connections.

Method 3: Update DNS

  1. Step 1: Open the Command Prompt as an administrator and run the command `ipconfig /dns` to display the current DNS settings. Then, update the DNS settings by running the command `ipconfig /dns `.

🎯 Final Words

By following these steps, you should be able to resolve the SocketException: Failed host lookup error and ensure a stable network connection for your Flutter app.

Did this fix your problem?

If not, try searching for specific error codes.

🔍 Search Error Database

❓ Frequently Asked Questions