How to Fix the “DNS Server Not Responding” Error in Windows

One common issue that Windows users encounter with internet connectivity is the error message "DNS server not responding" or "Windows can’t communicate with the device or resource (primary DNS server)." This error indicates that the operating system is unable to connect to the Domain Name Server (DNS), which is responsible for converting domain names into IP addresses. Here’s how to troubleshoot and resolve this issue.

1. Check Your Internet Connection

First, ensure that the issue isn’t related to your physical connection. Verify that the cable is properly connected to your computer, or try restarting your router if you’re on Wi-Fi. Sometimes, a simple reboot can restore the connection.

2. Restart the DNS Client Service in Windows

Restarting the DNS Client service can often restore functionality. To do this:

  • Open the Task Manager (press Ctrl + Shift + Esc) and navigate to the Services tab.
  • Locate the service named Dnscache (the DNS Client) and click Restart.

3. Change Your DNS Server

Sometimes, the issue may be related to the DNS server you're using. You can switch to free DNS servers like Google Public DNS or OpenDNS. Here’s how to change your DNS server:

  1. Go to Control Panel > Network and Internet > Network and Sharing Center.
  2. Click on your network connection, then select Properties.
  3. Select Internet Protocol Version 4 (TCP/IPv4) and click Properties.
  4. Enter the following DNS servers, for example:
    - Google Public DNS: 8.8.8.8 and 8.8.4.4
    - OpenDNS: 208.67.222.222 and 208.67.220.220
  5. Click OK and restart your internet connection.

4. Reset TCP/IP Settings and Clear the DNS Cache

Resetting network settings can help resolve the issue. Here’s how:

  1. Open Command Prompt as an administrator (type “cmd” in the Windows search, right-click, and select Run as administrator).
  2. Enter the following commands one by one, pressing Enter after each:
ipconfig /flushdns
ipconfig /release
ipconfig /renew
netsh int ip reset
netsh winsock reset

After executing these commands, restart your computer and check if the issue is resolved.

5. Update Network Drivers

DNS issues may also arise due to outdated or corrupted network drivers. To update your drivers:

  1. Open Device Manager by pressing Win + X and selecting Device Manager.
  2. Find your network adapter, right-click on it, and choose Update driver.
  3. Follow the on-screen instructions to install any available updates.

6. Disable Antivirus and Firewall Temporarily

Sometimes, antivirus software or firewalls can block access to DNS servers. Try temporarily disabling your antivirus and firewall to see if the error disappears. If it does, configure them to allow DNS connections without interference.