Many users are familiar with the situation when their laptop suddenly loses internet access, and the terrifying message "DNS server not responding" appears in the notification center. This happens at the most inopportune moments: during an important video conference, downloading a large file, or watching a movie. The error means that your computer can't convert a human-readable website address (like google.com) into a machine-readable IP address.
The problem often lies not in physical damage to the hardware, but in a software failure in the network settings or a temporary address conflict. Domain Name System The DNS (DNS) works like the internet's phone book, and if it's down, navigation becomes impossible. In most cases, you can restore functionality yourself, without resorting to expensive specialists.
In this article, we'll cover a detailed procedure, from simple reboots to advanced network protocol configuration. You'll learn how to diagnose the problem, change DNS providers to more stable ones, and clear Windows system errors that are blocking the connection. The key is to proceed consistently, testing the results after each step.
Primary diagnostics and equipment testing
Before delving into the depths of operating system settings, it's important to rule out simple hardware failures. Routers often overheat or experience a software glitch, which prevents them from distributing correct addresses to devices. A simple router reboot resolves up to 40% of all connection issues.
Unplug the router from the power outlet, wait 15-20 seconds, and plug it back in. Wait for the indicators to fully load. If the laptop still displays the following message: DNS server is not respondingCheck if the internet works on other devices (smartphone, tablet). If the problem only occurs on one laptop, the issue is with its settings.
⚠️ Attention: If the WAN indicator on your router is red or flashing abnormally quickly, the problem may be with your ISP. In this case, adjusting your laptop settings won't help—call tech support.
It's also worth checking your network adapter drivers. Sometimes, after a Windows update, the system installs the wrong version of software for the Wi-Fi module. Go to device Manager, find the "Network Adapters" section, and make sure your device doesn't have a yellow exclamation mark. If it does, try updating the driver or rolling it back to a previous version.
Reset network settings and clear DNS cache
The most effective way to fix software errors is to completely reset the accumulated data. Windows maintains a cache of DNS queries to quickly open frequently visited websites, but this cache can become corrupted over time. Clearing the cache takes a couple of minutes and is performed via the command line.
First, you need to launch the Command Prompt as an administrator. Right-click the Start menu and select the appropriate option. In the window that opens, enter the command ipconfig /flushdns and press Enter. You should see a message indicating that the cache was cleared successfully.
Next, you should reset any other network settings that may have been reset. Enter the following commands in sequence, confirming each one with Enter:
ipconfig /releaseipconfig /renew
netsh winsock reset
After running all commands, be sure to restart your computer. This will reset TCP/IP and Winsock settings to factory defaults, eliminating any conflicts that may have occurred in the system.
☑️ Network Reset Checklist
Manual DNS server configuration
If automatically obtaining addresses from your ISP isn't working, it makes sense to set up static DNS servers. Public servers from Google or Cloudflare are often more stable and faster than the default ones provided by your ISP.
To change the settings, go to Control Panel → Network and Internet → Network and Sharing CenterClick on your Wi-Fi connection, then select "Properties." Find "Internet Protocol Version 4 (TCP/IPv4)" in the list, select it, and click "Properties."
In the window that opens, select the checkbox next to "Use the following DNS server addresses." Enter the current addresses in the fields. For example, for Google, this is 8.8.8.8 (preferred) and 8.8.4.4 (alternative) For Cloudflare use 1.1.1.1 And 1.0.0.1.
| DNS provider | Preferred server | Alternative server | Peculiarities |
|---|---|---|---|
| Google Public DNS | 8.8.8.8 | 8.8.4.4 | High speed, reliability |
| Cloudflare | 1.1.1.1 | 1.0.0.1 | Emphasis on privacy |
| OpenDNS | 208.67.222.222 | 208.67.220.220 | Phishing filtering |
| Quad9 | 9.9.9.9 | 149.112.112.112 | Blocking malicious websites |
After entering the information, click "OK" and close all windows. Check your connection. If the "DNS server is not responding" error disappears, the issue was with your ISP's servers.
⚠️ Attention: When manually registering DNS, make sure the "IP Address" and "Default Gateway" fields are set to "Obtain Automatically" unless you know the exact parameters of your local network. Change only the DNS.
IPv6 and power saving settings
Sometimes a protocol version conflict causes a laptop to attempt to use IPv6, which is unsupported or improperly configured by the ISP. Disabling this protocol can instantly resolve the connection issue.
Return to your wireless connection properties (as described in the previous section). Find "Internet Protocol Version 6 (TCP/IPv6)" in the list and uncheck it. Click "OK" to save the changes.
Another common cause of crashes is the Wi-Fi adapter's power-saving mode. Windows may attempt to conserve power by disabling the communication module, which leads to connection drops and DNS errors. To fix this, open device Manager, find your Wi-Fi adapter, go to “Properties” → “Power Management” tab.
Uncheck "Allow the computer to turn off this device to save power." This will force the laptop to keep the Wi-Fi module active at all times.
Why do we need IPv6 if it is often disabled?
IPv6 was created to expand the Internet's address space, but many home networks have not yet configured it correctly, causing delays when trying to connect.
The impact of antivirus and firewall
Third-party antiviruses and firewalls often have their own firewalls that can block DNS requests, deeming them suspicious. If you recently installed a new antivirus or updated an old one, the problem may be with it.
Try temporarily disabling real-time protection or completely disabling your antivirus for 5-10 minutes. If the internet connection returns, you need to find the "Network" or "Firewall" section in the program settings and add an exception for your home connection.
It's also worth checking the built-in Windows firewall. Click Win + R, enter firewall.cpl and press Enter. Select "Restore Defaults" from the menu on the left. This will reset the filtering rules to their original state, eliminating any potential erroneous blocking.
⚠️ Attention: Don't leave your computer without antivirus protection for long periods of time. After scanning, immediately re-enable protection or configure exclusions correctly.
Network reset in Windows 10 and 11
If none of the above methods help, Windows offers a "nuclear option"—a full network reset. This feature removes all network adapters and reinstalls them, as well as resets all network components to factory settings.
Go to Settings → Network & InternetAt the very bottom of the page (in Windows 10) or in the "Advanced network settings" section (in Windows 11), find the "Network reset" link. Click "Reset now" and confirm the action.
Your computer will warn you that it will restart in 5 minutes. All saved Wi-Fi passwords will be deleted, and you'll have to re-enter them. However, this action is guaranteed to fix deep system registry errors related to the network.
Frequently Asked Questions (FAQ)
Why does the error only appear on my laptop, while Wi-Fi works on my phone?
This indicates a problem with the laptop's operating system settings or drivers. Most likely, the TCP/IP settings are incorrect, a static IP address is conflicting with the router, or an antivirus program is blocking the connection. Follow the instructions to reset the network.
Can a virus cause the "DNS server not responding" error?
Yes, some types of malware (such as Trojans) can change DNS settings, redirecting your traffic to fraudulent websites. Scan your system with an antivirus and Malwarebytes, and check your hosts file for any unwanted entries.
Should I change my DNS if my internet is working but slow?
Changing your DNS to faster servers (such as Google or Cloudflare) may slightly speed up page response times (download start times), but will not increase file download speeds, as this depends on your ISP's bandwidth.
What should I do if my Wi-Fi adapter disappears after resetting my network?
If the adapter disappears from Device Manager after the reset, try updating the hardware configuration (the magnifying glass button in Device Manager) or restarting the laptop again. As a last resort, download the driver from another device and install it manually.