How to Fix DNS_PROBE_FINISHED_NXDOMAIN Error in Google Chrome

Incident & Problem Summary

The DNS_PROBE_FINISHED_NXDOMAIN error in Google Chrome signals that the browser failed to resolve a domain name to an IP address, resulting in an inability to load web pages. This error typically manifests as a blank screen, a red error message, or a failure to connect to specific websites. Users are reporting inconsistent occurrences across different networks and devices, with symptoms ranging from intermittent failures to complete website unavailability.

Symptoms & Diagnostic Checklist

Users experiencing this error may notice:

• A red error message stating “DNS_PROBE_FINISHED_NXDOMAIN” in the address bar.
• Inability to load specific websites or all pages, often with a “Connection refused” or “Page not found” prompt.
• Intermittent connectivity issues, especially after system reboots or network changes.

To verify if the issue is system-wide or localized:

• Test connectivity by accessing other websites (e.g., https://example.com).
• Check DNS resolution using the nslookup command in a terminal or command prompt.
• Confirm that the error persists across multiple browsers (e.g., Firefox, Edge).

Technical Root Cause Analysis

The error stems from a failure in the Domain Name System (DNS) resolution process, where the browser cannot map a domain name to its corresponding IP address. Common root causes include:

• Misconfigured DNS settings: The system or browser may be using an invalid or unreachable DNS server.
• Network connectivity issues: Local network disruptions or router misconfigurations can prevent DNS queries from reaching authoritative servers.
• Cached DNS entries: Stale or corrupted DNS records in the operating system or browser cache may lead to incorrect resolutions.
• Firewall or security software interference: Overzealous filtering rules may block DNS traffic.

Step-by-Step Resolution Procedures

1. Reset DNS Settings:
• On Windows:

 netsh winsock reset
 netsh int ip reset

Restart the computer after execution.

• On macOS/Linux:

 sudo dscacheutil -flushcache
 sudo killall -HUP mDNSResponder

1. Clear Browser Cache and Cookies:
• Open Chrome, navigate to chrome://settings/clearBrowserData, and select “Cached images and files” and “Cookies.”

1. Change DNS Server:
• Manually set DNS servers to public options like Google (8.8.8.8) or Cloudflare (1.1.1.1):

 # Windows (via Control Panel > Network and Sharing Center > Change Adapter Settings)
 # macOS (via System Preferences > Network > Advanced > DNS)

1. Check Network Connectivity:
• Run ping and tracert commands to verify network reachability:

 ping 8.8.8.8
 tracert example.com

1. Reinstall Chrome:
• Uninstall Chrome via the OS settings, then download the latest version from the official website.

Temporary Workarounds

• Use a different DNS provider: Temporarily switch to public DNS servers like OpenDNS (208.67.222.222) or Quad9 (9.9.9.9).
• Disable browser extensions: Some ad blockers or security tools may interfere with DNS resolution.
• Restart the router: A reboot can resolve transient network issues affecting DNS queries.

What NOT to Do

• Avoid disabling DNSSEC: This can compromise security and may exacerbate resolution failures.
• Do not manually edit DNS configuration files: Incorrect edits can lead to persistent connectivity issues.
• Avoid using third-party DNS tools without verification: Untrusted tools may introduce additional points of failure.

Long-Term Prevention & Alerting

Implement the following safeguards to minimize recurrence:

• Monitor DNS server health: Use tools like nslookup or dig to regularly check DNS resolution times and success rates.
• Enable DNS over HTTPS (DoH): Configure browsers to use encrypted DNS queries for enhanced security and reliability.
• Update system and browser software: Regular updates address known bugs and security vulnerabilities.
• Configure network alerts: Set up monitoring tools to notify administrators of DNS resolution failures or network outages.

Frequently Asked Questions

Q1: Can the DNS_PROBE_FINISHED_NXDOMAIN error be caused by a specific website?

Yes, the error may occur if the website’s DNS records are misconfigured or temporarily unreachable. Testing with other domains helps isolate the issue.

Q2: How do I check if my DNS settings are correct?

Run ipconfig /all on Windows or ifconfig on macOS/Linux to verify DNS server addresses. Compare them with your ISP’s recommended settings.

Q3: Does clearing the browser cache resolve the error?

Clearing the cache can help if stale DNS entries are causing conflicts, but it may not address underlying network or DNS server issues.

Verified Technical Author

Written by Techniq World

Technology specialist and technical writer at Techniq World, covering modern software, operating systems, and developer tools.