Forum Discussion

Barbarank's avatar
Barbarank
Iron Contributor
Aug 14, 2026

DNS appears functional but certain websites won't open

All my DNS settings appear correct and other sites load fine, but specific websites consistently fail to open with connection errors, suggesting a possible issue with DNS caching, IPv6, MTU size,...
owaisraza1299's avatar
owaisraza1299
Copper Contributor
Aug 14, 2026

This looks like a DNS resolution issue with specific domains, not a problem with your whole internet connection. Since you already tried flushing DNS and changing DNS servers, try these steps:

>Restart your router/modem and your computer.
>Open Command Prompt as Administrator and run:
>ipconfig /flushdns
>ipconfig /release
>ipconfig /renew
--------------

>>Restart your PC and try the website again.

>Try the same website using your phone’s mobile hotspot.

>If it works on the hotspot, the problem is most likely with your ISP/router DNS.

>If it still doesn't work, the domain itself may have a DNS or server issue.

>You can also try Cloudflare DNS (1.1.1.1) or Google DNS (8.8.8.8).

Because the error shown is DNS_PROBE_FINISHED_NXDOMAIN, Windows is basically saying that it cannot find the IP address for that particular domain. Testing it through a mobile hotspot is the quickest way to determine whether the problem is on your network or with the website itself.