How to Resolve Android Error Code 407 (Step-by-Step Guide)

Error 407 occurs when an Android device attempts to access a resource through a proxy server that requires authentication, and the provided credentials either do not match the server’s requirements or are absent. The most common causes include incorrect proxy credentials, misconfigured proxy settings, or network policy changes that require updated authentication.

Check and Update Proxy Settings

1. Open the Settings app on your Android device. Navigate to Network & internet, and choose the Wi-Fi network.

2. Tap the Gear icon next to the network name.

3. Press the Pencil icon on the top right, and choose Advanced Options. 

4. Under Proxy, tap the dropdown menu to see current settings.

Verify the proxy server details, including address, port, username, and password. Ensure there are no typos or extra spaces in the username or password fields. If you recently changed your network password, update the proxy credentials to match. 

For a home network where the proxy is set incorrectly, select None to disable it. If you are on a corporate or school network, contact your network administrator. Request the correct proxy server address, port number, authentication credentials, and confirm which authentication protocol your network uses (Basic, Digest, or NTLM).

Clear Browser Cache and Data

Sometimes a corrupt or overwhelmed cache can cause proxy errors and reach the wrong page.

1. Open your browser app (Chrome, Firefox, Samsung Internet) and tap on the menu icon (three dots).

2. Select Delete browsing data.

3. Choose a time range and tap on Delete Data. Restart your browser and try accessing the website again.

Disable or Reconfigure VPN Settings

VPNs that use proxy technology can also cause 407 errors with the wrong settings. If you are using a VPN app, open the VPN settings. Temporarily disable the VPN to see if the error clears. If the error disappears, check your VPN’s proxy configuration settings.

Ensure the VPN proxy credentials match your network requirements, and contact your VPN provider’s support if the issue persists with VPN enabled.

Pro Tips

• Always double-check proxy credentials for typos or extra spaces before saving settings.
• Keep a record of your network proxy settings in case you need to restore them.
• Contact your network administrator immediately if you are on a corporate network and unsure about proxy settings.
• If your network password changes, remember to update proxy credentials in your Wi-Fi settings.
• Avoid using public Wi-Fi networks that require proxy authentication unless you trust the network provider.

The Bottom Line

Android Error Code 407 signals an authentication issue between your device and a proxy server. The error means your device either lacks the required credentials or is using incorrect authentication information. 

Verifying your proxy username and password or clearing corrupted browser cache resolves the issue in most cases. Home users should disable proxy settings if configured incorrectly, while corporate and school network users should consult their IT departments for accurate configurations.