Dernière mise à jour: 29 mai 2022
You want to access a website but the following error is displayed on your browser: "DNS server is not responding"? Don't panic! This problem can often be easily resolved.
In this article we will see what a DNS server and how to solve this problem.
What Is a DNS Server?
First of all, before you can fix this DNS server problem that doesn't work, we need to figure out what is a DNS server?
A DNS server is a powerful computer that will allow you to make a link between a domain name and an IP address. For example a DNS server allows you to transform the domain names www.funinformatique.com to the IP address 188.8.131.52.
To put it simply, a DNS server allows to make the relation between the domain name and IP address. It's a bit like your phone book which matches the name Ahmed to his phone number.
How do I fix the "DNS Server Not Responding" error?
Now that we know this what is a DNS server, we can understand why it is essential to the functioning of the internet.
When you enter a URL in your browser, your computer tries to get an IP address, but your DNS server is not responding.
As such, your PC cannot take you to the website you want to go to and gives you a DNS error.
Then how fix DNS server not responding error ?
Try another browser
To verify that it does not come from a web browser problem, try a different one.
If you use Google Chrome, just switch to Edge or Firefox to see if the problem is not with the browser.
If you are able to connect with another browser, then I recommend uninstalling/reinstalling the one causing the error.
Clear the DNS cache
If the DNS server is not responding, there may be a problem with your DNS cache.
DNS cache is a file on your PC that stores the websites and addresses and IPs that you visit. This saves you from having to constantly ask your DNS server for the information you have received in the past.
Unfortunately, your DNS cache can get corrupted, and this causes DNS issues. Fortunately, flushing the DNS cache can probably fix this problem.
To flush DNS cache under Windows:
- Click the start button, then type "Command Prompt."
- Select the search result that appears,
- Enter "ipconfig / flushdns".
Restart your router
If all the devices and computers on your local network cannot connect to the DNS server, there may be a problem with your router.
To solve this problem, unplug your router from the mains and leave it for 30 seconds. Plug it back in and try the connection again.
Temporarily disable your Antivirus and Firewall
If none of the above solutions seem to work, try temporarily disable anti-virus programs and firewalls.
These softwares monitor your internet connection to make sure nothing bad gets into your system, but sometimes things go wrong.
If disabling your antivirus or firewall does the trick, you may need to reinstall it to get it back on track. It might also be time to try another antivirus program.