How to fix the “dns server unavailable” error

The Domain Name System (DNS) server is where all of the domain name names for the sites you’ve sầu visited are stored. When searching a tên miền name in a website browser, it is forwarded by your router to lớn a DNS VPS. If the particular site’s domain name has been saved, it then returns the corresponding IPhường address. This makes the loading process for those sites particularly faster.

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As great as this process is, it’s not uncomtháng for the DNS hệ thống khổng lồ fail khổng lồ establish a connection from time khổng lồ time. Attempting lớn troubleshoot your web browser in this instance can often result in a ‘DNS server not responding’ error.


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Cthua kém out of the Commvà Prompt window and reboot your system.Flushing Your DNS (MacOS)

You can also flush the DNS on a Mac. The way in which you bởi vì this will vary slightly depending on the version of Mac your computer is running. It often only involves a change in the syntax used during the process.

Open a Finder window and then head into lớn Applications, followed by Utilities, and ending in the Terminal.Enter in the following syntax pertaining khổng lồ the version of MacOS you’re currently using:MacOS High Sierra – suvì killall -HUP. mDNSResponder; sleep 2; eđến macOS DNS Cabịt Remix | sayMacOS Sierra – suvày killall -HUP mDNSResponder;say DNS cache has been flushedMacOS Mojave – suvị killall -HUP. mDNSResponder;sleep 2;MacOS X El Capitan/Yosemite – sudo dscacheutil -flushcache;suvì chưng killall -HUP.. mDNSResponder;say cabịt flushedPress the Return key, enter your password, and then hit the Return key once more.Await the audio alert that indicates a successful DNS flush before exiting the Terminal.

The MacOS X cabít clearing will need a few added steps in order to fully flush it out. You’ll have sầu to flush both MDNS và UDNS caches on top of the steps previously taken.

Before exiting from the Terminal, persize the following commands:

For the MDNS cađậy, type subởi vì discoveryutil mdnsflushcacheFor the UDNS cabít, type suvị discoveryutil udnsflushcachesRemove sầu Multiple Antiviruses

“You can never have sầu too much protection.” This may be somewhat true in the real world, but in the world of giải pháp công nghệ, having multiple antivirut programs installed on the same computer can actually hinder the protection provided.

Chechồng khổng lồ see if you have two or more antivi khuẩn programs currently running as this may be the reason for the DNS issue. Once you disable all additional programs, reboot your system and the problem should resolve itself.

Ensure that moving forward you only keep a single software program running to help defover yourself from unwanted malware attacks. This not only increases security but can help you avoid running inkhổng lồ more DNS hệ thống errors.

Changing DNS Servers


If you’ve already attempted all fixes written here & are still receiving the same “DNS server unavailable” error, it may be in your best interest khổng lồ change your DNS servers. There are plenty of public DNS from which to choose, Google’s miễn phí DNS being one of the more popular choices.

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The process for this is very simple và can be done in a few clicks, depending on where you choose lớn change it. We’ll be using the Windows operating system in each of our examples.

DNS Changes via Router
Access your router by launching your website browser & entering the Default Gateway address inlớn the URL bar.You can find the Default Gateway by opening a Comm& prompt window, typing ipconfig, & pressing Enter. Copy the numbers located beside Default Gateway in the pulled up information.
Login to the router using the proper credentials.Locate your internet account information which can often be found in a similarly named tab.Enter the address of the DNS hệ thống you want to lớn use in place of the current one.Save sầu the edited information và exit the router interface.DNS Changes via Windows OS
Access your network connection properties by launching the Run function (Windows key + R) và typing in ncpage authority.cpl. Press Enter.
Windows 10 users can right-cliông chồng the Windows ibé at the lower left of the desktop screen và select Network Connections from the menu.Select the network adapter currently in use. WLAN for WiFi connections và LAN for direct connection, usually via ethernet cable.Windows 10 will have sầu your options on the left side panel. Select one và choose Change adapter options from the main window.Right-click your choice & select Properties.
In the Networking tab, highlight your IP.. version (v4 or v6) from the thực đơn and click the Properties button.
Enter in the DNS server addresses you plan khổng lồ use.If you had been using a previous DNS server not obtained automatically, remember lớn annotate the addresses just in case you want to lớn return using them at a later date.Finalize the changes by clicking OK.Test New DNS Server

Once the DNS servers have been changed, open a browser and attempt khổng lồ launch a well-known site like www.google.com. If the site is immediately accessible, then the new DNS is functioning properly. If not, enter one of Google’s IPhường addresses, 172.217.16.195, directly into your browser & hit Enter.

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Wait for the familiar Google hình ảnh và search bar to appear. If this also fails, then the problem may lie with the internet & not the DNS server itself. Contact your mạng internet service provider for additional help if this is the case.


Former US Army IT communications specialist who began his online blogging career in năm 2016. Joseph has over 10 years experience in the IT industry as both an analyst & communications expert. He"s a night owl and an avid Red Bull consumer who spends most of his downtime enthralled by online gaming and trang web building. Read Joseph"s Full Bio


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