Here are some methods to fix the “DNS Not Responding” error:-
1. Restart Your Router and Computer
2. Check and Troubleshoot Your Network Connection
3. Flush DNS Cache
4. Change DNS Servers Address
5. Update the Computer’s Network Adapter Drivers
6. Temporarily Disable Antivirus, Firewall, or VPN
7. Disable Peer-To-Peer Feature
8. Use a Different Device or Web Browser
9. Disable IPv6 on Computer
10. Restart PC in Safe Mode