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The DNS (Domain Name System) server stores all the domain names of websites you visit. When you search for a domain name in a web browser, it is sent to the DNS server by your router. If the domain name of the website in question is registered, it returns the corresponding IP address. Therefore, the process of downloading these websites is particularly fast.
As wonderful as this process may be, it is not uncommon for the DNS server to fail to connect from time to time. In this case, attempts to troubleshoot the web browser often lead to the error message “DNS-server does not respond.
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What causes the “DNS Server Unavailable” error message?
If your internet isn’t working and you’re getting a “DNS server unreachable” error message on Windows, you may be able to find the cause.
- Your DNS server is unavailable.
- Your network adapter driver is incorrect
- You have configured your network adapter for a different network.
These annoying messages can often be caused by a server failure. In this case, the DNS server is temporarily unavailable.
How to solve the “DNS server is unavailable” problem?
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Updated: November 2024
Reset your router settings
This is the easiest way to fix DNS errors. If you are using a router to establish a network connection, simply unplug and plug in the router cable or press the reset button on the router.
If the problem is minor, you can quickly fix the error. Your DNS server may not be available this way.
Clear DNS
- Go to the home screen.
- Press the Windows + R key.
- In the launch window that appears, type cmd.exe and click OK.
- Then type the following commands in the cmd window (type Enter after each command): ipconfig /flushdns; ipconfig /release; ipconfig /renew; exit.
Resetting TCP/IP with the netsh command
- Press the Windows + X key to open the Win + X menu.
- Select the command line (Admin) from the list.
- If the command line is not available, select PowerShell (Admin) instead.
- When the command prompt opens, type netsh int ip reset. Press Enter to execute the command.
Enter the IP address manually
- Press Windows + R and type ncpa.CPL. Press Enter or press OK.
- Find your network connection, right-click it, and select Properties.
- When the Properties window opens, select Internet Protocol version 4 (TCP/IPv4) and click Properties.
- On the General tab, select Use the following IP address.
- Enter the desired IP address, subnet mask, default gateway, preferred DNS server, and alternate DNS server.
- Click OK when you are finished.
- If you are not sure what values to enter, you can check the network configuration on another device on your network.
Make sure that DNS is automatically obtained
- Press Windows + R and type ncpa.CPL. Press Enter or press OK.
- Find your network connection, right-click it, and select Properties.
- When the Properties window opens, select Internet Protocol version 4 (TCP/IPv4) and click Properties.
- Select Obtain DNS server address automatically and click OK.
- Now select Internet Protocol version 6 (TCP/IPv6) and click Properties.
- Select Obtain DNS server address automatically and press OK to save your changes.
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Frequently Asked Questions
How do I fix an inaccessible DNS server?
- Try using a different web browser.
- Disable firewall and antivirus software.
- Restart your router.
- Select another DNS server.
- To change the DNS server of the router, follow these steps.
- Change the DNS server address.
What are possible reasons why your DNS server is unavailable?
There are several possible reasons why your DNS server may not be available. You may need to update your browser cache or your router may not be working properly. The DNS server you are using may be faulty or your firewall may be causing problems.
How can I make my DNS server available?
- Go to the Control Panel.
- Click on Network and Internet -> Network and Sharing Center -> Change adapter settings.
- Select the connection for which you want to set up Google Public DNS.
- Select the Network tab.
- Click Advanced and select the DNS tab.
- Click OK.
- Select Use the following DNS server addresses.
How do I fix my DNS server problem?
- Fix the problem with your Internet Service Provider.
- Reboot your network equipment.
- Clear the DNS cache and reboot Winsock.
- Perform a full reboot.
- Run the Microsoft LLDP driver.
- Update the network adapter driver and reinstall it if necessary.