How to clear chrome net internals dns error?

The net-internals tool in Google Chrome is a strong diagnostic tool that lets users solve DNS (Domain Name System) problems among other network-related ones. DNS problems in Chrome might cause webpages to load incorrectly, therefore affecting browsing experiences.

This knowledge base offers a methodical road map for clearing Chrome's net-internals DNS cache, identifying DNS faults, and fixing connectivity concerns.

1. What is Chrome Net Internals DNS Error?

Built-in as a diagnostic tool, Chrome's net-internals let users examine network activity like DNS searches, sockets, and proxy configurations. When Chrome fails to translate a domain name from a webpage into an IP address, a DNS error results and causes:

• "DNS_PROBE_FINISHED_NXDOMAIN"

• "ERR_NAME_NOT_RESOLVED"

• "DNS_SERVER_NOT_RESPONDING"

By making the browser search for fresh DNS entries, clearing Chrome's DNS cache using net-internals typically fixes these problems.

2. Common Causes of DNS Errors in Chrome

Before fixing the issue, it�s important to understand the possible causes:

A. Corrupted DNS Cache

• Chrome stores DNS records to speed up browsing, but outdated or corrupted entries can cause errors.

B. Incorrect DNS Server Settings

• Using unreliable DNS servers (e.g., ISP-provided DNS) can lead to resolution failures.

C. Browser or System Glitches

• Temporary bugs in Chrome or the operating system may disrupt DNS resolution.

D. Network Configuration Issues

• Misconfigured router settings or managed firewall restrictions can block DNS requests.

E. Malware or Proxy Interference

• Malicious software or incorrect proxy settings may redirect DNS queries.

3. How to Clear Chrome�s DNS Cache Using Net Internals

The easiest way to fix DNS errors is by clearing Chrome�s internal DNS cache.

Step 1: Open Chrome�s Net Internals Page

1. Launch Google Chrome.

2. Type the following in the address bar and press Enter:

chrome://net-internals/#dns
 

Step 2: Clear Chrome�s DNS Cache

1. On the DNS tab, click the "Clear host cache" button.

• This removes all stored DNS records in Chrome.

2. Verify if the issue is resolved by reloading the problematic website.

Step 3: Check DNS Lookups (Optional)

• Navigate to:

chrome://net-internals/#events 

• Filter by dns to inspect recent DNS queries for errors.

4. Alternative Methods to Fix DNS Errors

If clearing Chrome�s DNS cache doesn�t work, try these additional fixes:

A. Flush the System DNS Cache (Windows/macOS/Linux)

Windows

1. Open Command Prompt (Admin).

2. Run:

ipconfig /flushdns 

macOS

1. Open Terminal.

2. Run:

sudo dscacheutil -flushcache  

3. sudo killall -HUP mDNSResponder 

Linux

1. Open Terminal.

2. Run (depending on your DNS service):

sudo systemd-resolve --flush-caches
or

sudo /etc/init.d/nscd restart 

B. Change DNS Servers

Switching to a public DNS can improve reliability.

Windows/macOS/Linux

1. Go to Network Settings.

2. Manually set DNS 

Router Level

1. Access your router admin panel (usually 192.168.1.1).

2. Update DNS settings under WAN/DHCP settings.

C. Disable Chrome Extensions

Some extensions may interfere with DNS:

1. Go to:

chrome://extensions/ 

2. Disable extensions one by one to identify the culprit.

D. Reset Chrome Settings

1. Go to:

chrome://settings/reset 

2. Click "Restore settings to their original defaults".

E. Check Firewall/Antivirus

• Temporarily disable firewall/antivirus to check if they block DNS.

F. Restart Network Devices

1. Restart your modem/router.

2. Restart your computer.

5. Preventing Future DNS Issues

To avoid recurring DNS errors:

• Use Reliable DNS Servers.

• Regularly Clear DNS Cache (Chrome & system).

• Keep Chrome & OS Updated.

• Scan for Malware periodically.

• Avoid Suspicious Extensions.

6. Conclusion

Clearing Chrome�s net-internals DNS cache is an effective way to fix domain resolution errors. Try flushing the system DNS, switching DNS servers, or looking for network interference should the problem remain.

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