Fix Can’t Connect to Proxy Server in Microsoft Edge

If Microsoft Edge shows “Can’t connect to the proxy server”, the fix is usually to reset the proxy settings in Windows, clear the browser cache, or disable conflicting extensions. This error means Edge cannot reach the intermediary server that routes your web traffic, so the browser blocks the connection entirely.

What This Error Actually Means

A proxy server sits between your device and the internet. It forwards your requests and returns the responses, often used by businesses, schools, or privacy tools. When Edge says it “can’t connect to the proxy server,” it means the browser tried to use a proxy address that is unreachable, misconfigured, or no longer running. The error can appear on every website or only on some, and it usually comes with an error code like ERR_PROXY_CONNECTION_FAILED or ERR_PROXY_CONNECTION_REFUSED.

Common causes include a leftover proxy setting from a VPN or security tool that was uninstalled, a system-wide proxy that points to a dead address, or corrupted network data in Windows. It can also happen after a Windows update changes network settings, or when a browser extension like a VPN or ad-blocker hijacks the proxy configuration.

Quick Fixes to Try First

Start with the simplest solutions, as they resolve most cases without touching advanced settings.

Restart Edge and your computer. A temporary glitch in the browser or network stack often clears itself.
Turn off any VPN or proxy software. If you use a VPN, disconnect it and try again. Some VPNs leave a proxy behind even after you close them.
Disable browser extensions. Click the puzzle icon in the toolbar, select “Manage extensions,” and toggle off any VPN, ad-blocker, or security extension. Restart Edge and test.
Run the Windows Network Troubleshooter. Go to Settings > System > Troubleshoot > Other troubleshooters, then run “Network and Internet.” It can detect and fix common proxy misconfigurations.

If none of these work, move on to the system-level fixes below.

Reset Proxy Settings in Windows

Windows has a global proxy setting that Edge reads by default. If it points to an invalid address, every browser on the system will fail. To reset it:

Open Settings (Windows key + I) and go to Network & Internet.
Select Proxy from the left menu (or “Proxy” under “Network & internet” on Windows 11).
Under Manual proxy setup, turn off Use a proxy server if it is on.
Under Automatic proxy setup, turn off Use setup script and make sure Automatically detect settings is toggled on.
Close Settings and restart Edge.

If you need a proxy for work or school, ask your IT department for the correct address and port, then re-enable it with those exact values. A common mistake is leaving the proxy on after disconnecting from a corporate network, which causes this exact error at home.

Clear Edge’s Cache and Network Data

Corrupted cached files or old proxy state inside Edge can trigger the error even when system settings are correct. To clear them:

Open Edge and click the three-dot menu (top right) > Settings.
Go to Privacy, search, and services.
Under Clear browsing data, click Choose what to clear.
Select Cached images and files and Cookies and other site data. You can leave passwords and form data if you want to stay logged in.
Click Clear now, then restart Edge.

If the problem persists, also reset Edge’s connection settings by typing edge://net-export in the address bar and clicking “Start logging to disk,” then stop it after a few seconds. This creates a log file that can help diagnose the issue, but for most users, simply clearing cache is enough.

Check for Malware or Unwanted Software

Some malicious programs or “potentially unwanted applications” (PUAs) change proxy settings to redirect traffic through their own servers. If the error appeared suddenly without you installing anything new, run a full system scan with Windows Security:

Open Windows Security (search for it in the Start menu).
Go to Virus & threat protection.
Click Scan options and select Full scan.
Click Scan now and wait for it to finish.

You can also check the current proxy settings in the Windows Registry, but this is risky for beginners. A safer route is to use the built-in netsh command. Open Command Prompt as administrator and run netsh winhttp reset proxy. This resets the WinHTTP proxy, which some applications use independently of the Settings panel.

Reset Edge to Default Settings

If nothing else works, resetting Edge itself will clear all extensions, temporary data, and settings back to factory defaults. This does not delete your bookmarks, passwords, or history, but it will remove extensions and custom settings.

Open Edge and go to Settings (three-dot menu > Settings).
Click Reset settings in the left sidebar.
Click Restore settings to their default values.
Confirm by clicking Reset.

After the reset, Edge will restart. You will need to re-enable any extensions you actually use. This step resolves most persistent proxy errors because it removes any corrupted browser-level proxy configurations that survive cache clearing.

When the Problem Is on the Network Side

Sometimes the proxy server itself is down, or the network you are on requires a proxy that is not configured. If you are on a corporate or school network, the proxy address may have changed, or the server may be temporarily offline. In that case:

Contact your IT support and ask for the correct proxy address, port, and any required credentials.
Check if other devices on the same network have the same error. If they do, the proxy server is likely down.
Try a different network (e.g., your phone’s hotspot). If Edge works there, the issue is specific to your current network, not your computer.

If you are at home and never set up a proxy, the error usually points to leftover software or corrupted settings, not an actual proxy server. In that case, the fixes above will resolve it.

Frequently Asked Questions

Why does Edge say “Can’t connect to the proxy server” when I don’t use a proxy?
This is usually caused by a VPN, security tool, or browser extension that set a proxy automatically and then left it behind. Windows may still be trying to use that dead proxy address. Resetting the proxy settings in Windows, as shown above, fixes it.

Will clearing my cache delete my passwords?
No. Clearing cached images and files and cookies will not remove saved passwords. If you select “Passwords and other sign-in data” in the clear browsing data menu, then they will be deleted, but that option is unchecked by default.

Can a proxy error be caused by a virus?
Yes, some malware changes proxy settings to route traffic through attacker-controlled servers. If the error appeared suddenly and you did not install new software, run a full Windows Security scan. You can also check the proxy settings in Windows to see if an unknown address is listed.

What is the difference between “Automatically detect settings” and “Use setup script”?
“Automatically detect settings” lets Windows find a proxy using Web Proxy Auto-Discovery (WPAD). “Use setup script” points to a specific file (a PAC file) that tells the browser how to route traffic. For home users, only “Automatically detect settings” should be on.

Does resetting Edge remove my bookmarks?
No. Resetting Edge to default settings keeps your bookmarks, saved passwords, and browsing history. It only resets settings like the homepage, search engine, and extensions, and clears temporary data like cache and cookies.

Why does the error only happen on some websites?
This can happen if the proxy server blocks certain domains, or if the PAC file (setup script) routes only some traffic through the proxy. It can also happen if a website uses HTTP/2 or QUIC, which some older proxies do not support. Try disabling the proxy entirely to see if the site loads.

General steps for current mainstream versions; menus can differ by device and version. See the disclaimer or report an error.

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