首先重啟路由器和設(shè)備，若問題仍存則檢查其他設(shè)備是否受影響；1. 重啟路由器和設(shè)備以排除臨時故障；2. 檢查是否為單設(shè)備問題以定位故障源；3. 將DNS服務(wù)器改為8.8.8.8和8.8.4.4（Google DNS）或1.1.1.1（Cloudflare）；4. 清除DNS緩存：Windows運(yùn)行ipconfig /flushdns，Mac執(zhí)行sudo dscacheutil -flushcache；5. 暫時禁用IPv6以排除協(xié)議衝突；6. 臨時關(guān)閉防火牆或殺毒軟件以檢測是否攔截DNS；7. 更新網(wǎng)絡(luò)適配器驅(qū)動程序以解決兼容性問題；8. 重置網(wǎng)絡(luò)設(shè)置：Windows使用netsh命令，Mac重新添加網(wǎng)絡(luò)連接；若所有步驟無效，聯(lián)繫ISP或改用公共DNS服務(wù)，問題通?？赏ㄟ^重啟或更換DNS解決。

The "DNS server not responding" error means your device can't communicate with the Domain Name System (DNS) server, which translates website names (like google.com) into IP addresses. As a result, you can't load websites even if your internet connection seems fine. Here's how to fix it step by step.

1. Restart Your Router and Device

Before diving into technical fixes, try the basics:

• Restart your computer, phone, or tablet.
• Power cycle your router and modem: unplug them for 30 seconds, then plug them back in.

This often resolves temporary network glitches that cause DNS issues.

2. Check Other Devices

See if the problem is isolated to one device or affects multiple devices on the same network.

• If only one device has the issue → focus on that device's settings.
• If all devices are affected → the problem is likely with your router or ISP.

3. Use a Different DNS Server

Your current DNS server (usually provided by your ISP) might be down or slow. Switching to a public DNS like Google DNS or Cloudflare can help.

On Windows:

1. Press Win I → Go to Network & Internet → Change adapter options .
2. Right-click your network connection → Properties .
3. Select Internet Protocol Version 4 (TCP/IPv4) → Click Properties .
4. Choose:
   • Use the following DNS server addresses
   • Preferred DNS server: 8.8.8.8
   • Alternate DNS server: 8.8.4.4
5. Click OK , then restart your browser.

Optional: For IPv6, use 2001:4860:4860::8888 and 2001:4860:4860::8844 .

On Mac:

1. Go to System Settings → Network → Select your connection → Details .
2. Go to DNS → Click the button.
3. Add 8.8.8.8 and 8.8.4.4 .
4. Remove your ISP's DNS if needed → Click OK .

On Router (recommended for all devices):

Log into your router's admin page (usually 192.168.1.1 ) and change the DNS settings under WAN or Internet settings. Use Google ( 8.8.8.8 , 8.8.4.4 ) or Cloudflare ( 1.1.1.1 , 1.0.0.1 ).

4. Flush DNS Cache

Your computer might be holding onto corrupted DNS data.

On Windows:

Open Command Prompt as admin and run:

 ipconfig /flushdns

On Mac:

Open Terminal and run:

 sudo dscacheutil -flushcache
sudo killall -HUP mDNSResponder

On Linux:

 sudo systemd-resolve --flush-caches

5. Disable IPv6 (Temporarily)

Sometimes IPv6 misconfiguration interferes with DNS.

• Go to your network adapter settings.
• Uncheck Internet Protocol Version 6 (TCP/IPv6) .
• Test your connection.

Re-enable it later if not needed.

6. Turn Off Antivirus or Firewall Temporarily

Overprotective security software can block DNS requests.

• Disable your firewall or third-party antivirus for a moment.
• Check if the error goes away.
• If it works, adjust the software's settings or consider switching.

7. Update Network Drivers (Windows)

Outdated or corrupt network drivers can cause connectivity issues.

1. Press Win X → Device Manager .
2. Expand Network adapters .
3. Right-click your network adapter → Update driver .
4. Choose Search automatically for updated driver software .

Or visit your PC or motherboard manufacturer's website for the latest driver.

8. Reset Network Settings

If nothing works, reset your network configuration.

On Windows:

 netsh winsock reset
netsh int ip reset

Run these in Command Prompt (Admin), then restart your PC.

On Mac:

Delete network preferences:

• Go to System Settings → Network .
• Remove your Wi-Fi connection → Re-add it.

Final Notes

• Contact your ISP if the issue persists — their DNS servers might be down.
• Consider using Cloudflare DNS ( 1.1.1.1 ) or OpenDNS as reliable alternatives.

Most DNS server errors aren't serious and can be fixed quickly with a DNS change or restart. Don't overthink it — start simple.

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