Fixing the “Your DNS Server might be unavailable” Error in Windows 10

Dec 27th 2017 - by Jean-tech in: Blog Fix PC Free News Windows 10 | 0 Comment

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If you are recently facing some problems with your internet connection where the error message stating that “Your DNS Server might be unavailable” in the Windows Network Diagnostic Troubleshooter, here are some things you can try to fix it. Restarting the Wi-Fi router can sometimes solve the problem, but if it doesn’t work for your case, then follow the given solutions below to fix the problem.

Before you start, you have to check the “ping status” and then try to use a different browser than the one you are using. If you find that you are experiencing some packet loss issues or that none of the browsers you used can pull up any website, then you must refer to the options given below to solve the problem.

Option #1 – Flush the DNS cache

You should know that by simply flushing the Windows DNS cache, you will be able to fix most of internet connection-related problems if you have been using Windows for quite a while now. By flushing the DNS cache, it will help when some websites are opening or not. To flush the DNS cache, refer to these steps:

  • Open Command Prompt as an administrator.
  • Key in this command and tap Enter: ipconfig /flushdns
  • After you key in the command, you will see a message that states, “Successfully flushed the DNS Resolver Cache”, indicating that the job is done.
  • You can also renew your IP address by running the following command below. Tap Enter after you key in each of the commands.
  • ipconfig /release
  • ipconfig /renew

After that, check if your internet connection is now fine.

Option #2 – Try using the Google Public DNS

You can change your DNS settings if the current DNS server you use has an issue by temporarily switching to the Google Public DNS. How? Follow the steps below:

  • Tap the Win + R keys to launch Run.
  • Type in ncpa.cpl and tap Enter or click OK to open Network Connections.
  • Right-click on the active network profile and select Properties where you can see the Internet Protocol Version 4 (TCP/IPv4) in the list – select it before you click on the Properties button.

  • Next, select the option “Use the following DNS server addresses” and enter the address below:
    • Preferred DNS server: 8.8.8.8
    • Alternate DNS server: 8.8.4.4
  • If you are using IPv6, you need to key in these instead:
    • Preferred DNS server: 2001:4860:4860::8888
    • Alternate DNS server: 2001:4860:4860::8844
  • After that, save the changes you’ve made and check if you’re still getting some issues or not.

Option #3 – Try to disable antivirus/firewall software/VPN

If you have just installed any antivirus, firewall software or VPN recently then chances are that might be the one that’s causing your internet connection problem so you should try disabling it for a while. There are cases when these kinds of programs cause some issues. To rule out this possibility, disable any of these programs and check you still have the same problem.

Option #4 – Disable Proxy

You must disable any Proxy server on your system if you are using one and check if it is causing some problems or not. To do so:

  • Tap the Win + I keys to open the Windows Settings panel.
  • Afterwards, proceed to Network & Internet and then to Proxy.
  • From there, make sure that the only option turned on is the “Automatically detect settings” option. So if you find other option turned on as well, you have to toggle the button to disable them.
  • You also have to open another option in the Local Area Connection or LAN settings. To do so, search for the Internet Options in the Taskbar search box or in Cortana.
  • Switch to the Connections tab after you open the Internet Properties window and then click on LAN settings.
  • After that, make sure that the option “Use a proxy server for your LAN” is turned off – if it isn’t, you have to deactivate this setting and then save the changes you’ve made.

Option #5 – Try resetting the router

There are times when the Wi-Fi router can cause some internet connection problems on your Windows 10 PC. If none of the previous options given above worked, you can try resetting your router. To do that, refer to your router’s manual as ever router tends to have different ways to reset them. After you reset the router, make sure that you enter all the IP addresses once more.

Option #6 – Reset the TCP/IP

Resetting would be the best option available to fix the corrupted TCP/IP. To reset the corrupted TCP/IP, refer to the following steps:

  • Open an elevated Command Prompt.
  • Execute this command: netsh int ip reset resettcpip.txt
  • After that, restart your PC to complete the task.

You can also try a one-click solution known as PC Cleaner which helps in fixing a lot of system issues on Windows 10 including issues with your DNS server. PC Cleaner Pro is a system utility tool that helps in fixing lots of system issues such as corrupted files, corrupted registries and it also helps in optimizing your PC’s overall performance as it cleans out any junk files in your computer and other system issues that causes your PC to slow down. To use this tool, follow the instructions below.

Perform a full system scan using PC Cleaner Pro. To do so, follow the instructions below.

  1. Turn on your computer. If it’s already on, you have to reboot
  2. After that, the BIOS screen will be displayed, but if Windows pops up instead, reboot your computer and try again. Once you’re on the BIOS screen, repeat pressing F8, by doing so the Advanced Option shows up.

  1. To navigate the Advanced Option use the arrow keys and select Safe Mode with Networking then hit
  2. Windows will now load the SafeMode with Networking.
  3. Press and hold both R key and Windows key.

  1. If done correctly, the Windows Run Box will show up.
  2. Type in explorer http://www.fixmypcfree.com/install/pccleanerpro

A single space must be in between explorer and http. Click OK.

  1. A dialog box will be displayed by Internet Explorer. Click Run to begin downloading PC Cleaner Pro. The installation will start automatically once a download is done.

  1. Click OK to launch PC Cleaner Pro.
  2. Run the program and click the Click to Start Scan button to perform a full system scan.

  1. After all the infections are identified, click FIX ALL.

 

 

 

 

 

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