Fix DNS Server Not Responding Error
Anyone who has seen a browser stall with a “DNS server not responding” error knows the frustration. It’s one of those problems that can feel mysterious, but in most cases a few targeted steps get you back online within minutes. This guide covers the most effective fixes across Windows, Mac, PS5, Samsung devices, and Eero-managed networks, so you can isolate the root cause and resolve it quickly.
Number of root DNS servers: 13 ·
Default DNS port: 53 ·
Typical DNS cache duration: 24 hours ·
Common fix success rate for restart: ~80%
Quick snapshot
- Restart your router and device (Hostwinds (hosting & server guide))
- Change to a public DNS server like 8.8.8.8 (TP-Link (networking hardware maker))
- Run the network troubleshooter (WindowsForum (community support))
- Flush DNS cache with ipconfig /flushdns (TP-Link)
- Reset Winsock (Hostwinds)
- Update network drivers (WindowsForum)
- Windows 10 / 11 (TP-Link)
- Mac (Hostwinds)
- PS5 (ExpressVPN (VPN & privacy service))
- Samsung devices (TP-Link)
- Check default DNS (eero Support (official router documentation))
- Set custom DNS in app (eero Support)
- Bypass Eero security blocking (eero Community (user reports))
4 key facts about DNS errors, one pattern: most arise from a misconfiguration or timeout at the device, router, or ISP level.
| Label | Value |
|---|---|
| Common Cause | DNS server timeout or misconfiguration |
| Typical Solution | Restart router or change DNS server |
| Time to Fix | 5 minutes |
| Tools Needed | Command prompt, router admin access |
The implication: in most cases, you don’t need advanced tools — just a few minutes and the right steps.
How to fix DNS server not responding
Start with the universal fixes that work on nearly any device. If the error appears on a single machine, try these steps in order.
How to fix DNS server not responding on Windows 11
- Open Command Prompt as administrator and run
ipconfig /flushdns(TP-Link (networking hardware maker)). - Run
ipconfig /registerdnsandipconfig /releasethenipconfig /renew(Hostwinds (hosting & server guide)). - Disable IPv6 in network adapter properties if the issue persists (WindowsForum (community support)).
- Update network drivers via Device Manager (WindowsForum).
The catch: Windows 11’s default DNS settings may conflict with certain ISP configurations, so switching to a public resolver often resolves the problem quickly.
How to fix DNS server not responding on Mac
- Open Terminal and run
sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder(TP-Link). - Use Wireless Diagnostics from the Wi-Fi menu to inspect connectivity issues (Hostwinds).
- Test the same connection on another browser or device to isolate the problem (Hostwinds).
Why this matters: macOS caches DNS aggressively, so flushing the cache is often the fastest fix for Mac users.
How to fix DNS server not responding on PS5
- Go to Settings → Network → Set Up Internet Connection → Advanced Settings → DNS Settings (ExpressVPN (VPN & privacy service)).
- Change from Automatic to Manual, then enter Primary DNS
8.8.8.8and Secondary DNS8.8.4.4(ExpressVPN). - Alternatively, use Cloudflare DNS
1.1.1.1and1.0.0.1(ExpressVPN).
The trade-off: changing DNS on PS5 may improve responsiveness for some users, but results depend on the resolver and network path.
How to fix DNS server not responding on Samsung
- Go to Settings → Connections → Wi-Fi → tap the connected network → Manage Network Settings → DNS (TP-Link).
- Change DNS to
8.8.8.8or1.1.1.1. - Restart the device after changing the DNS.
What is the cause of DNS failure?
Understanding why the error occurs helps you fix it faster. DNS failures usually stem from one of these sources.
- DNS server timeout — the resolver didn’t respond within the timeout window (Hostwinds).
- Incorrect DNS settings — the device or router is pointing to a nonfunctional server (TP-Link).
- ISP DNS issues — your internet provider’s DNS servers may be down or overloaded (Hostwinds).
- Firewall blocking DNS — security software or router firewall may block port 53 (Hostwinds).
- Network congestion — high traffic can cause DNS packet loss (WindowsForum).
Why is my internet blocking DNS?
If your internet seems to block DNS, it could be due to router-level security features. For example, some eero networks have built-in DNS filtering that can block certain resolvers (eero Community (user reports)).
The implication: the cause may be intentional — your router’s security is protecting you, but it can also be overridden if you need to change DNS.
How can I reset my DNS server?
Resetting DNS involves clearing cached records and restarting the DNS client service. This is safe and does not affect your personal data.
Is resetting DNS safe?
- Yes — resetting DNS only clears temporary lookups; it does not delete bookmarks, passwords, or files (TP-Link).
- On Windows, run
ipconfig /flushdnsandipconfig /registerdns(TP-Link). - Restart the DNS Client service via
services.msc(Hostwinds). - Reset Winsock with
netsh winsock reset(Hostwinds).
Why this matters: many users worry about losing data, but DNS reset affects only network resolution, not your files.
How do you flush a DNS cache?
Flushing the DNS cache is a quick way to force your device to ask for fresh DNS information. Here are the commands for each platform.
- Windows:
ipconfig /flushdns(TP-Link). - macOS:
sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder(TP-Link). - Linux:
sudo systemd-resolve --flush-caches(Hostwinds). - Browser: clear the browser’s DNS cache via chrome://net-internals/#dns (Chrome) or about:networking#dns (Firefox).
The pattern: flushing cache is a zero-risk step that resolves many “stale DNS” issues instantly.
How to fix DNS server not responding on Eero?
Eero routers use the default DNS provided by your ISP. If you’re seeing the error, you can change the DNS settings in the Eero app.
What DNS server does Eero use?
Eero uses the DNS servers assigned by your ISP by default. You can check the current DNS in the Eero app under Settings → Advanced → DNS (eero Support (official router documentation)).
Can you change DNS server on eero?
Yes — Eero supports custom DNS through the app. Go to Settings → Advanced networking → DNS, then enter custom resolver addresses (eero Support).
How do I set up custom DNS servers with eero?
- Open the Eero app, tap Settings → Advanced → DNS.
- Select “Custom” and enter Primary and Secondary DNS (e.g., 8.8.8.8 and 8.8.4.4).
- Reboot the Eero system for changes to propagate to connected devices (eero Community (user reports)).
How to bypass eero blocking?
If Eero’s security features block certain DNS servers, you can disable Eero Secure or use a different DNS resolver. Some users report that disabling DNS caching in Eero Labs helps (Reddit r/eero (user community)).
The trade-off: bypassing Eero security may reduce protection, so weigh the need for a specific DNS against the safety of default filtering.
Most DNS errors resolve with a router restart or DNS change. For device-specific issues, flush the cache. Eero users can customize DNS in the app but may need to adjust security settings.
For most users, the fastest fix is restarting the router and changing the DNS to a public resolver like 8.8.8.8. If that doesn’t work, flush the cache and check firewall settings. Eero users can customize DNS in the app, but may need to disable security features to allow certain resolvers.
If the error appears on only one device, the problem is likely in that device’s DNS cache or settings. If it affects all devices, check the router or ISP. A simple test: connect a different device to the same Wi-Fi — if it works, the issue is device-specific.
What’s clear and what’s not
Confirmed facts
- Resetting DNS is safe and does not delete personal data (TP-Link).
- Flushing DNS cache clears temporary records and can resolve errors (TP-Link).
- Changing DNS server to a public resolver (8.8.8.8 or 1.1.1.1) often resolves the error (TP-Link).
What’s unclear
- Why DNS fails on specific devices may vary — the exact cause is often a combination of settings (Hostwinds).
- Eero blocking may be intentional for security, making it hard to know if the DNS change is being overridden (eero Community).
- Disabling DNS caching in Eero Labs may help, but its effectiveness is unverified (Reddit r/eero (user community)).
“Verify IP configuration, check DNS server, and flush cache.”
— Microsoft DNS troubleshooting guide (Hostwinds reference)
“Restarting the router and waiting about 30 seconds before powering it back on is a common first-step fix for DNS response problems.”
— Hostwinds (hosting & server guide, source)
The consequence: most users can fix the “DNS server not responding” error in under 5 minutes without advanced tools. For Windows and Mac users, flushing the cache and switching to a public DNS resolver are the most reliable steps. For Eero owners, custom DNS settings are available but may require toggling security features. The pattern is clear: isolate the layer (device, router, or ISP) and apply the corresponding fix. For anyone stuck on an Eero network, the choice is clear: either accept the default DNS or customize it in the app, knowing that security features may need to be adjusted.
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Frequently asked questions
Can I use Google DNS to fix the error?
Yes — Google Public DNS (8.8.8.8 and 8.8.4.4) is a widely recommended alternative. It often resolves the “DNS server not responding” error when the default DNS is unavailable (TP-Link).
Does resetting DNS delete my bookmarks?
No — resetting DNS only clears cached lookup records. Your bookmarks, passwords, and files remain untouched (TP-Link).
Will changing DNS affect my internet speed?
It can — a faster DNS resolver may improve page load times, while a slower one can add latency. Google and Cloudflare DNS are generally fast and reliable (ExpressVPN).
How often should I flush DNS cache?
Only when you experience DNS-related issues. Flushing daily is unnecessary and may slow down browsing temporarily (Hostwinds).
Is DNS server not responding a virus?
No — it’s a network error, not a virus. However, malware can sometimes alter DNS settings, so scan your device if the problem persists (WindowsForum).
What does ‘DNS server not responding’ mean?
It means your device sent a DNS query but received no response. This can happen because the DNS server is down, the network is congested, or the settings are misconfigured (Hostwinds).
Why does DNS error only happen on one device?
It suggests the issue is device-specific — likely a cached DNS entry, incorrect network settings, or a firewall on that device (Hostwinds).
Can I fix DNS error without restarting my router?
Yes — you can flush the DNS cache, change the DNS server on the device, or run the network troubleshooter. Restarting the router is just one of many options (TP-Link).
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