How To Fix The “DNS Server Unavailable” Error

By 4 weeks ago

The Domain Name System (DNS) server is in which all the domains for the webweb sites you have visited are stored. When looking a website call in an internet browser, it’s far forwarded with the aid of using your router to a DNS server. If the specific site’s area call has been saved, it then returns the corresponding IP address. This makes the loading technique for the ones webweb sites mainly faster.

As amazing as this technique is, it is now no longer unusual for the DNS server to fail to set up a connection from time to time. Attempting to troubleshoot your internet browser on this example can frequently bring about a ‘DNS server now no longer responding’ error.

Many elements may want to reason this unique blunders to reveal up for your screen. The maximum outstanding of that’s the opportunity that the server itself is presently experiencing an outage. Luckily, this trouble is regularly followed through some smooth solutions.

How To Fix The “DNS Server Unavailable” Error

Have you have obtained an mistakes that the DNS server is unavailable? For a brief fix, those issues can now and again be corrected via way of means of something as easy as converting browsers, messing with some of your firewall settings, or rebooting your router. It’ll be as much as you to parent out the reason and next correction for the trouble.

Start via way of means of the usage of a unique browser for the internet pages you are looking to open. This way that if you are presently receiving the mistake whilst the usage of the Mozilla Firefox browser, transfer it as much as Microsoft Edge or Google Chrome. Should the trouble persist, we are able to flow directly to checking out different devices.

Attempt to open a website the usage of a cell device, at the identical network, to make sure that the trouble is not the end result of hardware failures. It might additionally be useful to try to hook up with the identical web pages the usage of your facts plan to perceive if the reason is, in fact, with the DNS server.

Flushing Your DNS (Windows)

The most effective method for fixing the issue with the DNS server being unavailable is to flush it using Command Prompt.

  • Pull up the Run dialog by simultaneously pressing the Windows key and R key.
  • Type cmd into the field and press Enter.
  • In the Command Prompt window, type ipconfig /flushdns and press Enter.
  • Follow up by typing ipconfig /release and press Enter.
  • Finally, type ipconfig /renew and press Enter.
  • Close out of the Command Prompt window and reboot your system.

Flushing Your DNS (MacOS)

You can also flush the DNS on a Mac. The way in which you do 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.

  1. Open a Finder window and then head into Applications, followed by Utilities, and ending in the Terminal.
  2. Enter in the following syntax pertaining to the version of MacOS you’re currently using:
    • MacOS High Sierra – sudo killall -HUP mDNSResponder; sleep 2; echo macOS DNS Cache Reset | say
    • MacOS Sierra – sudo killall -HUP mDNSResponder;say DNS cache has been flushed
    • MacOS Mojave – sudo killall -HUP mDNSResponder;sleep 2;
    • MacOS X El Capitan/Yosemite – sudo dscacheutil -flushcache;sudo killall -HUP mDNSResponder;say cache flushed
  3. Press the Return key, enter your password, and then hit the Return key once more.
  4. Await the audio alert that indicates a successful DNS flush before exiting the Terminal.

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

Before exiting from the Terminal, perform the following commands:

  1. For the MDNS cache, type sudo discoveryutil mdnsflushcache
  2. For the UDNS cache, type sudo discoveryutil udnsflushcaches.

Remove Multiple Antiviruses

“You can in no way have an excessive amount of safety.” This can be fairly real withinside the actual global, however, withinside the global of technology, having more than one antivirus packages hooked up at the identical pc can virtually prevent the safety provided.

Check to peer when you have or greater antivirus packages presently strolling as this can be the cause for the DNS issue. Once you disable all extra packages, reboot your device and the trouble must solve itself.

Ensure that shifting ahead you best preserve an unmarried software program software strolling to assist protect yourself from undesirable malware attacks. This now no longer best will increase protection however allow you to keep away from strolling into greater DNS server errors.

Changing DNS Servers

If you’ve got already tried all fixes written right here and are nonetheless receiving the same “DNS server unavailable” error, it is able to be for your first-rate hobby to alternate your DNS servers. There are masses of public DNS from which to select, Google’s loose DNS being one of the extra famous choices.

The procedure for that is quite simple and may be carried out in some clicks, relying on in which you select to alternate it. We’ll be the use the Windows working gadget in each of our examples.

DNS Changes via Router

  • Access your router by launching your web browser and entering the Default Gateway address into the URL bar.
    • You can find the Default Gateway by opening a Command prompt window, typing ipconfig, and 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.
  • Navigate to the DNS server and select the option that best mirrors your used internet protocol (IPv4 or IPv6).
  • Enter the address of the DNS server you want to use in place of the current one.
    • Google’s DNS server will be in the preferred DNSv4 and in the alternate DNS server. In the case of IPv6, you’ll want to use 2001:4860:4860::8888 and 2001:4860:4860::8844 respectively.
  • Save the edited information and exit the router interface.

DNS Changes via Windows OS

  • Access your network connection properties by launching the Run function (Windows key + R) and typing in ncpa.cpl. Press Enter.
  • Windows 10 users can right-click the Windows icon at the lower left of the desktop screen and select Network Connections from the menu.
  • Select the network adapter currently in use. WLAN for WiFi connections and LAN for direct connection, usually via ethernet cable.
    • Windows 10 will have your options on the left side panel. Select one and choose Change adapter options from the main window.
  • Right-click your choice and select Properties.
  • In the Networking tab, highlight your IP version (v4 or v6) from the menu and click the Properties button.
  • Click the radial for Use the following DNS server addresses: to enable editing capabilities.
  • Enter in the DNS server addresses you plan to use.
    • If you had been using a previous DNS server not obtained automatically, remember to annotate the addresses just in case you want to return using them at a later date.
  • Finalize the changes by clicking OK.

Test New DNS Server

Once the DNS servers were changed, open a browser and try and release a famous web website online like If the web website online is straight away accessible, then the brand new DNS is functioning properly. If now no longer, input one in all Google’s IP addresses,, immediately into your browser and hit Enter.

Wait for the acquainted Google brand and seek bar to appear. If this additionally fails, then the hassle may also lie with the net and now no longer the DNS server itself. Contact your net carrier issuer for added assist if that is the case.


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