Quad9 outages and problems
In the past 24 hours, 4 user reports came in for Quad9. Counting only the 15-minute windows with a spike big enough to count as an outage, that comes to 100.00% uptime for the day.
The busiest 15-minute window had 1 report, about 8 hours ago. That stays below our outage threshold, so it doesn't count as downtime.
Quad9 in November 2026
- Problem reports in November
- 4
Monthly report for November 2026
What went wrong
What people said was wrong in recent problem reports for Quad9 worldwide.
Share of 3 recent reports that said what was wrong, from every country listed below.
Quad9 reports around the world
In the last 24 hours, 22 problem reports about Quad9 came in from 8 countries. Right now reports are at the usual level in every country.
- Outage now
- Problems now
- Normal
| Country | Now | Last hour | 24 hours |
|---|---|---|---|
| Brazil | Normal | 0 | 10 |
| The US numbers above | Normal | 0 | 4 |
| Argentina | Normal | 0 | 2 |
| Australia | Normal | 0 | 2 |
| Japan | Normal | 0 | 1 |
| Peru | Normal | 0 | 1 |
| Poland | Normal | 0 | 1 |
| The UK | Normal | 0 | 1 |
| Austria | Normal | 0 | 0 |
| Belgium | Normal | 0 | 0 |
| Canada | Normal | 0 | 0 |
| Chile | Normal | 0 | 0 |
Each country's status compares its reports with the usual level there. 60 more countries had 0 reports in the last 24 hours. Map outlines: Natural Earth.
Quad9 problem spikes, last 30 days
Since 8 October, Quad9 had no outage spikes or periods of elevated reports.
- Sat 3 Oct: no data
- Sun 4 Oct: no data
- Mon 5 Oct: no data
- Tue 6 Oct: no data
- Wed 7 Oct: no data
- Thu 8 Oct: 2 reports
- Fri 9 Oct: 2 reports
- Sat 10 Oct: 0 reports
- Sun 11 Oct: 0 reports
- Mon 12 Oct: 3 reports
- Tue 13 Oct: 0 reports
- Wed 14 Oct: 0 reports
- Thu 15 Oct: 0 reports
- Fri 16 Oct: 0 reports
- Sat 17 Oct: 0 reports
- Sun 18 Oct: 0 reports
- Mon 19 Oct: 0 reports
- Tue 20 Oct: 2 reports
- Wed 21 Oct: no data
- Thu 22 Oct: 3 reports
- Fri 23 Oct: 0 reports
- Sat 24 Oct: 0 reports
- Sun 25 Oct: 1 report
- Mon 26 Oct: 0 reports
- Tue 27 Oct: 1 report
- Wed 28 Oct: 1 report
- Thu 29 Oct: 10 reports
- Fri 30 Oct: 12 reports
- Sat 31 Oct: 3 reports
- Sun 1 Nov: 4 reports
By country
Each square is one day in the countries with the most reports: red when reports stayed at outage level for half an hour or more, amber when they stayed above the usual level for an hour or more, grey otherwise.
- The US31
- Brazil12
- Australia5
- Poland5
- Austria4
- Argentina3
- Canada3
- The UK3
Country history starts on 28 October 2026. Days run from midnight to midnight, Central European time.
A spike is a sharp rise in problem reports from users, kept exactly as this page showed it at the time. This history starts on 8 October 2026. Monthly reports for all services
How to fix Quad9 not working
Quad9 is up on our end, so if it won't work for you, the problem is most likely on your side. Work through these in order:
Your browser tries to reach quad9.net over your own connection, right now. Nothing is sent to us or stored.
Rule out an outage on Quad9's side
Open the official status page at status.quad9.net before you change any settings, because a resolver problem and a broken home network look the same from the browser. The banner at the top of our page counts user reports in 15-minute windows over the last 24 hours, so a spike there plus an incident on the status page means you wait rather than troubleshoot. Quiet on both fronts points at your own setup.
Try a second device on the same Wi-Fi
When one laptop fails to resolve names but your phone loads sites over the same connection, the resolver is reachable and the fault sits in that machine's configuration. If the second device fails too, look at the router or the path your ISP gives you. Either answer cuts the search in half.
Enter the resolver addresses by hand
Replace whatever the router handed out with the addresses from the help centre at docs.quad9.net. On Windows that is Settings > Network & Internet > Wi-Fi (or Ethernet) > DNS server assignment > Edit; on macOS it is System Settings > Network > your connection > Details > DNS. Add both addresses so one unreachable server does not take name resolution down, and note that Android's Private DNS field wants the hostname form instead of an address.
Flush the cache and query the resolver directly
Stale negative entries outlive a resolver change, so clear them: ipconfig /flushdns in an Administrator Command Prompt on Windows, or sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder on macOS. Then run nslookup or dig against the address you configured and see whether an answer comes back at all. No response at all usually means something on the network is blocking port 53, which is common on hotel and office Wi-Fi.
While Quad9 is down: what to use instead
- Cloudflare DNS Set your device or router to Cloudflare DNS for website lookups.
- Google Public DNS Try it as a fallback when Quad9 cannot resolve a site.
- OpenDNS Switch your router to OpenDNS for home network lookups.
- AdGuard DNS Choose it if you want DNS filtering that can block ads and trackers.
Fix Quad9 on Windows, Mac, Android and iPhone
Quad9 on Windows
- Fix
- Open your Network Connections, access your adapter's IPv4 properties, and verify that the Quad9 DNS addresses (9.9.9.9 and 149.112.112.112) are correct, or temporarily switch to automatic DNS.
- Check
- Check if Quad9 is down on Windows by verifying if web pages fail to load with DNS resolution errors while your internet connection remains active. You can also check the official Quad9 status page for ongoing outages.
ping quad9.netTest whether Quad9's servers replynslookup quad9.netCheck that Quad9's DNS resolvestracert quad9.netTrace where the connection dropsipconfig /flushdnsClear the DNS cache, then reloadQuad9 on Mac
- Fix
- Open System Settings, go to Network, select your active connection, click Details, and ensure the Quad9 DNS servers are correctly added in the DNS tab. If Quad9 is down, temporarily remove them to restore your connection.
- Check
- To see if Quad9 is down on a Mac, check if Safari displays server connection errors while other network services are functioning. You can also check the official Quad9 service status page.
ping -c 4 quad9.netTest whether Quad9's servers replynslookup quad9.netCheck that Quad9's DNS resolvestraceroute quad9.netTrace where the connection dropssudo dscacheutil -flushcache; sudo killall -HUP mDNSResponderFlush the macOS DNS cache, then reloadQuad9 on Android
- Fix
- Go to Settings, Network & internet, select Private DNS, and verify it is set to the Quad9 hostname (dns.quad9.net), or temporarily switch it to automatic. Alternatively, toggle the Quad9 Connect app off and on again.
- Check
- On Android, check if Quad9 is down by looking for DNS lookup failure errors in your browser while connected to Wi-Fi or mobile data. You can also check if turning off Private DNS restores your internet access.
Quad9 on iPhone and iPad
- Fix
- Go to Settings, Wi-Fi, tap the info icon next to your network, select Configure DNS, and ensure the Quad9 primary server (9.9.9.9) is configured. If you installed the Quad9 profile, you can temporarily disable it in VPN & Device Management.
- Check
- On iOS, you can tell if Quad9 is down if websites fail to load in Safari while you are connected to a working Wi-Fi network. You can also check if internet access returns after removing the Quad9 DNS profile.
What happens when Quad9 goes down
Quad9 is a public DNS resolver that filters known malicious domains. Home users and network admins set 9.9.9.9 on routers and phones, so when it has trouble, domain lookups stall and your browsing or app connections break even if the internet link itself is fine.
Fresh lookups fail first. Pages already cached on your device may keep loading for a while, but app logins and new tabs time out as soon as they need a hostname that is not in cache. You get browser messages such as “DNS server isn’t responding” or “server IP address could not be found,” and mail clients or streaming apps stall when they reach a host they have not used recently. A problem can be partial or regional: one network or resolver address times out while another keeps working, because the service answers from many locations; the status at the top only shows whether problem reports are above their usual level in 15-minute windows over the last 24 hours, and the app does not ping or probe the service.
Quad9 IP address, servers and network
- IPv4 address
- 195.176.255.138
- IPv6
- 2001:620:2020:5:9::138
- Network
- AS559 · SWITCH Switch, Swiss Academic and Research Network, registered in Switzerland
- DNS hosted by
- its own name servers (6panb.ch)
- HTTPS certificate
- Issued by Let's Encrypt, valid until 3 Jan 2027 (63 days)
- HTTP/3
- Not advertised
- Our check
- Answered in 41 ms
Checked from our server in Frankfurt, Germany, 3 days ago, for quad9.net. Visitors elsewhere may see different addresses.
Checked from 11 places around the world
All 11 locations got an answer from quad9.net. Fastest from Milan (37 ms), slowest from Singapore (1,892 ms). Every location connected to the same address, on SWITCH Switch, Swiss Academic and Research Network (AS559).
| Location | Result | Time | Address reached |
|---|---|---|---|
| FrankfurtGermany | Up | 39 ms | 195.176.255.138 |
| ViennaAustria | Up | 95 ms | 195.176.255.138 |
| MilanItaly | Up | 37 ms | 195.176.255.138 |
| ParisFrance | Up | 161 ms | 195.176.255.138 |
| AmsterdamNetherlands | Up | 110 ms | 195.176.255.138 |
| MadridSpain | Up | 137 ms | 195.176.255.138 |
| WarsawPoland | Up | 143 ms | 195.176.255.138 |
| Los AngelesUSA | Up | 576 ms | 195.176.255.138 |
| São PauloBrazil | Up | 764 ms | 195.176.255.138 |
| SingaporeSingapore | Up | 1,892 ms | 195.176.255.138 |
| TokyoJapan | Up | 991 ms | 195.176.255.138 |
Checked with check-host.net from its servers in these cities 3 days ago, for quad9.net. Time is how long each server took to load the page.
Quad9 FAQ
Is Quad9 down right now?
Why does a site fail to load on Quad9 when it works on my mobile data?
Which addresses do I put in my router or phone?
One device still can't resolve anything after I changed my DNS. Why?
Where do I find setup steps or report a domain that got blocked?
How we track Quad9
The status on this page comes from user-submitted problem reports for Quad9, counted in 15-minute windows over the last 24 hours. Each window is compared with the normal level for Quad9, so a few complaints on a quiet day don't trigger anything, but a sudden jump well above normal does.
When reports climb well above normal, the status here changes to partial outage or major outage and the chart moves with it. This is separate from Quad9's official status page: user reports tend to show a problem early, while the official page confirms the cause. If the two disagree, check both.