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Chrome ERR_PROXY_CONNECTION_FAILED — Proxy Server Unreachable

Errorchrome

Overview

Fix Chrome ERR_PROXY_CONNECTION_FAILED error when Chrome cannot connect to the configured proxy server, preventing all web browsing.

Key Details

  • ERR_PROXY_CONNECTION_FAILED means Chrome is configured to use a proxy but cannot reach it
  • Chrome uses the system proxy settings (Windows: Internet Options, Mac: System Preferences)
  • Corporate environments often require proxy for internet access
  • VPN software and browser extensions can set proxy settings without obvious indication
  • Malware sometimes sets a proxy to intercept traffic

Common Causes

  • Proxy server is down or unreachable
  • Incorrect proxy settings configured in the system
  • VPN extension or software set a proxy that is no longer running
  • Malware configured a malicious proxy to intercept traffic
  • PAC (Proxy Auto-Configuration) file URL is unreachable

Steps

  1. 1Check proxy settings: Chrome > Settings > System > Open proxy settings
  2. 2Windows: disable proxy — Settings > Network > Proxy > turn off manual proxy and auto-detect
  3. 3Mac: System Settings > Network > Wi-Fi > Proxies > uncheck all proxies
  4. 4Check for VPN or proxy extensions in Chrome: chrome://extensions
  5. 5Run malware scan if proxy settings keep reverting to unwanted values

Tags

chromeerr-proxy-connection-failedproxyvpnnetwork

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Frequently Asked Questions

Most home users do not need a proxy. Corporate networks often require one — ask your IT department for the correct proxy settings.