A situation when a message suddenly appears on the monitor screen that DNS server is not responding, is familiar to many users of the operating system Windows 10This usually happens at the most inopportune moments: during an important video call, while downloading a large file, or in the middle of an online game. The computer may show a connection to the WiFi router, the network icon is active, but there's no actual internet access, and pages in the browser simply won't load.
The problem lies in a disruption in the connection between your device and the domain name server, which translates human-readable website addresses into the IP addresses your computer needs for routing. Windows 10 The router relies on these settings, and if they're messed up, blocked by an antivirus, or the router itself freezes, the system loses track of where to send requests. Most often, the error is software-related and can be resolved without reinstalling the drivers.
In this guide, we'll cover proven methods for diagnosing and troubleshooting the issue. We won't rely on automated troubleshooters, which often only detect the problem, but will instead focus on manually configuring network protocols. Understanding the root cause will allow you to quickly restore your system. WiFi connection into working order.
Restarting the hardware and resetting the network cache
The most basic, yet often overlooked, step is a complete reboot of the entire hardware chain. Routers running for days without interruption accumulate errors in their RAM, which can cause the DNS service to freeze. Unplug the router for 15-20 seconds, then plug it back in and wait for the indicators to fully load. After this, try reconnecting to the WiFi network.
If a hard reset doesn't help, you need to clear the network stack in the Windows 10The system maintains a cache of DNS queries, and sometimes it gets corrupted, blocking access to new websites. To clear it, use the command prompt with administrator rights. Right-click the Start menu and select Windows PowerShell (Administrator) or Command Prompt (Administrator).
In the window that opens, enter the command ipconfig /flushdns and press Enter. You should see a message indicating the cache has been cleared successfully. Next, reset the TCP/IP and Winsock protocol settings by entering the following two commands: netsh int ip reset And netsh winsock resetAfter completing all the steps, be sure to restart your computer for the changes to take effect.
⚠️ Note: If you lose internet access after resetting Winsock and a yellow triangle appears on the network icon, this may indicate that your antivirus or other software is blocking the network driver. Temporarily disable any third-party firewalls.
☑️ Basic Failure Diagnosis
Manually Configuring DNS Addresses in Windows 10
Providers often provide their own DNS servers by default, which can be unstable or limited. The most reliable way to avoid the "server not responding" issue is to specify public and fast addresses from Google or CloudflareThis action forces your Windows 10 Ignore router settings and contact trusted nodes directly.
To start, open Settings (keys Win + I) and go to the "Network and Internet" section. Select the "Status" tab and click "Change adapter settings" (or go to "Network and Sharing Center" → "Change adapter settings"). Find your wireless connection (usually called "Wireless network" or "Wi-Fi"), right-click it, and select "Properties."
In the list of components, find the line Internet Protocol version 4 (TCP/IPv4), select it, and click the "Properties" button. Toggle the checkbox to "Use the following DNS server addresses." Enter the following into the fields:
- 🌐 Preferred DNS server: 8.8.8.8
- 🌐 Alternate DNS server: 8.8.4.4
Click "OK" and close all windows. The system will now use these addresses. If the issue was DNS blocking by your ISP or a hardware failure, the internet should work immediately. You can also try the addresses Cloudflare: 1.1.1.1 and 1.0.0.1, which often work faster.
Disabling IPv6
Protocol IPv6 It is the successor to the modern addressing standard, but it does not work correctly in some home networks and on provider equipment. Windows 10 By default, IPv6 is prioritized, and if the router or ISP doesn't fully support it, a conflict occurs, resulting in a DNS error. Disabling this protocol is a common solution for stabilizing WiFi.
Return to your network adapter's properties window (as described in the previous section: Network and Sharing Center → Adapter Properties → Properties). In the list of components, find the line Internet Protocol version 6 (TCP/IPv6). Uncheck the box next to this item. Make sure the box next to Internet Protocol version 4 (TCP/IPv4) remained on.
Click "OK" to save. The changes take effect immediately; a reboot is usually not required, but recommended. Check the website's accessibility. If page loading speeds have increased and the error has disappeared, the protocol conflict has been resolved.
Why does IPv6 cause problems?
Many older routers and some ISPs incorrectly handle IPv6 requests by trying to find a route longer than the Windows timeout allows, resulting in a "DNS not responding" error.
Antivirus and firewall conflict
Third-party antivirus suites such as Kaspersky, ESET or Avast, have their own web protection modules and firewalls. Sometimes, after updating the databases or the program itself, these modules begin to mistakenly block DNS requests, considering them suspicious. In this case, Windows 10 technically connected to the network, but traffic is filtered.
Try temporarily pausing your antivirus. This is usually done through the system tray (the icon in the lower-right corner of the screen) by right-clicking. Select "Pause protection" for 10-15 minutes. If the internet connection returns, the issue is in your security settings.
You don't need to uninstall your antivirus. Simply go to its settings, find the "Network" or "Web Protection" section, and try resetting your network settings to default or adding your home network to the trusted list. Also, check if "Public Network" mode is enabled in Windows itself, which imposes stricter restrictions.
| Action | Probability of solving the problem | Complexity |
|---|---|---|
| Rebooting the router | High (30%) | Low |
| Change DNS to 8.8.8.8 | Very high (50%) | Low |
| Disabling IPv6 | Average (15%) | Low |
| Resetting the antivirus | Average (5%) | Average |
⚠️ Attention: Don't leave your computer without antivirus protection for long periods of time. If the problem can only be resolved by completely disabling protection, immediately update your antivirus to the latest version or contact the vendor's technical support.
Updating and reinstalling WiFi drivers
The wireless adapter driver is the intermediary between Windows 10 and the physical WiFi module. If the driver file is corrupted or outdated, it may not process network packets correctly. Windows often automatically updates drivers, but sometimes it installs generic ones that perform poorly.
Open Device Manager (click Win + X and select the item from the menu). Expand the "Network adapters" branch. Find your WiFi module (the name often includes Wireless, 802.11, AC or a brand like Realtek, Intel, Qualcomm). Right-click and select "Uninstall device". In the window that appears, confirm the deletion, but don't put check the box "Delete driver software" if it is present.
Once uninstalled, the WiFi icon will disappear. Restart your computer. When booting Windows 10 The driver will detect new hardware and automatically reinstall it, restoring its proper functionality. If this doesn't help, download the latest driver from the laptop manufacturer's website or from another device (such as a phone) and install it manually.
Using Fix It and Resetting the Network
IN Windows 10 A powerful network reset feature is built in, which restores all network settings to factory defaults. This is a drastic method that deletes saved WiFi passwords, VPN settings, and virtual adapters, but it's effective when other methods fail.
Go to "Settings" → "Network & Internet." At the very bottom of the "Status" tab, find the "Network Reset" link. Click it, then click "Reset Now." The system will warn you that it will reboot in 5 minutes. After turning on your computer, you will need to re-enter your WiFi password.
This method is especially useful if the system has accumulated numerous network-related registry errors, or if you previously installed WiFi hotspot programs that changed system settings. After the reset, the system becomes "clean" in terms of network configurations.
⚠️ Attention: After resetting the network, all saved WiFi passwords will be deleted. Make sure you know your home network password before performing this operation.
What to do if resetting the network didn't help?
If even a full reset and reinstallation of Windows doesn't solve the problem, the laptop's WiFi module itself may be faulty or the router may have a hardware defect. Try connecting via a USB WiFi adapter.
Frequently Asked Questions (FAQ)
Why does the DNS error only occur on one website?
If only one specific website won't open, but others work, the problem likely isn't with your computer. The site may be blocked by your ISP, its server may be down, or its IP address may have changed and the cache hasn't updated yet. Try accessing the site from your phone using mobile data to check.
Can a virus cause DNS errors?
Yes, some types of malware (Trojan.Win32.DNSChanger and similar programs) change DNS addresses in the system to their own in order to redirect you to phishing sites or block access to antivirus software. If changing the DNS to 8.8.8.8 repeatedly returns strange numbers, run a full system scan with your antivirus software.
Does time and date affect DNS errors?
Yes, an incorrect date and time can cause errors when establishing a secure connection (HTTPS). The browser may block access to the site, considering the security certificate invalid, which the user may perceive as a DNS issue. Check that the time in Windows 10 coincided with reality.
What to do if DNS is not responding on all devices?
If the error occurs on your phone, tablet, and computer simultaneously, the problem is definitely with your router or your ISP. Restart your router. If that doesn't help, call your ISP; they may be doing maintenance on their line.