how to fix proxy authentication pop up that keeps appearing

Question

Each and every time some users are experiencing a proxy authentication pop up when they browse the net on edge. when they key in their details it reappears. our firewall team is saying everything from their is working fine, if it was the proxy server everyone could have been experiencing the sane issue. kindly assist.

Answer 1

Hi kopano moletsane

Welcome to the Microsoft Q&A Forum!

I know how frustrating it can be when a proxy authentication pop‑up keeps interrupting your browsing, especially when users enter their details and it just comes right back.

This issue usually happens due to local configuration conflicts rather than a firewall-wide problem. Here are several steps you can try to resolve it:

1.Reset Windows Proxy Settings

Go to Settings → Network & Internet → Proxy and confirm whether:

• Only the intended proxy is enabled
• “Automatically detect settings” is turned off if you're not using WPAD/PAC
• The PAC script URL (if used) is reachable

2.Clear Edge Browsing Data

Sometimes corrupted cookies or cached auth data cause repeated prompts:

• Edge → Settings → Privacy → Clear browsing data

3.Remove Old Credentials from Credential Manager

1. Open Credential Manager
2. Go to Windows Credentials
3. Delete any stored proxy entries
4. Try browsing again and re-enter credentials

4.Disable WPAD

WPAD can trigger unwanted auto‑proxy detection loops:

• Disable via Group Policy or the registry if your network doesn’t rely on it

5.Reset Network Stack

Run in Command Prompt (Admin):

ipconfig /flushdns 
netsh winhttp reset proxy 
netsh int ip reset 
netsh winsock reset

Hope this helps. Feel free to update here if anything comes up!

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