How to Fix DNS Errors on Windows 10
Resolve DNS server not responding and website-not-loading errors.
Last verified: February 21, 2026
DNS errors on Windows manifest most visibly as specific sites failing to load while others work fine, or as the "DNS_PROBE_FINISHED_NO_INTERNET" error in Chrome, both of which indicate the device can't resolve hostnames to IP addresses correctly. The Windows DNS cache retains mappings for visited sites and can preserve stale records after a router's DNS settings change — flushing it with ipconfig /flushdns in Command Prompt forces fresh lookups on every next request. Overriding the router's DNS with a reliable public resolver (Google's 8.8.8.8/8.8.4.4 or Cloudflare's 1.1.1.1) in the network adapter settings is a permanent fix if the router itself is providing unreliable name resolution.
Quick Steps
Follow in order for the fastest result.
- 1Open Command Prompt as administrator and run: ipconfig /flushdns. Then close and reopen your browser.
- 2Set a reliable public DNS manually: Primary 8.8.8.8, Secondary 8.8.4.4, found in your network adapter or Wi-Fi settings.
- 3Restart the browser and test loading sites that previously failed.
Still Not Working?
Try these if the steps above didn't help.
- Disable any active VPN — VPNs can intercept and break DNS resolution.
- Restart the router to flush its own DNS cache.
- Test another browser to rule out a browser-specific DNS cache problem.
Verify the Fix
Confirm everything is fully working before closing this guide.
- Load 3–4 different websites, including ones that were previously unreachable.
- Confirm page load times are back to normal.
Frequently Asked Questions
Does Windows 10 have a built-in way to fix dns errors?
How long does it take to fix dns errors on Windows 10?
Is it safe to fix dns errors on Windows 10?
What should I do if fix dns errors doesn't work on Windows 10?
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