What to do if the DNS server does not respond: step-by-step instructions. DNS server does not respond: quick solution DNS does not see the server address

When setting up modems and routers, the user may need to specify a parameter such as a DNS server. In this article we will tell you how to connect a DNS server.

DNS - self-configuration

As a rule, the DNS server is issued by the provider, and the user’s only task is to specify the issued DNS in the appropriate network configuration item:

1. Find the "Network and Sharing Center" section in Control Panel.
2. Specify the DNS server in the appropriate cell. Typically, the provider issues two DNS servers, so that if the first one is overloaded, the system can turn to the second one; in this case, the first DNS is indicated in the “Preferred DNS server” cell, the second - in the “Alternative DNS server” cell (if you don’t know where see DNS, refer to the article).
3. Click OK.

DNS - get automatically

You can also set up retrieving DNS servers automatically:

1. Go to "Control Panel".
2. Find the "Network and Sharing Center" section in Control Panel.
3. Select the network you are using - double-click on the network with the left mouse button.
4. In the new window, click on the "Properties" button.
5. Double-click on "Internet Protocol Version 4 (TCP/IPv4)".
6. Place a dot in the "Obtain DNS server address automatically" option.
7. Click OK.

All! The system will search for suitable network parameters independently.

DNS - choice

Many users who, due to work or other reasons, need very fast Internet, do not recommend using either the provider or automatic DNS servers; they suggest trying different servers in order to find the least loaded one. In this case, of course, the DNS server must work stably. The most popular DNS recommended on the network:

• Google Public DNS, preferred - 8.8.8.8, alternative - 8.8.4.4;
• Open DNS, preferred - 208.67.222.222, alternative - 208.67.220.220 or preferred - 208.67.222.220, alternative - 208.67.220.222.
• Ultra DNS, preferred - 156.154.70.1, alternative - 156.154.71.1.
• Yandex DNS, preferred - 77.88.8.8, alternative - 77.88.8.1.
• Yandex DNS with filtering of dangerous sites, preferred - 77.88.8.88, alternative - 77.88.8.2.
• Yandex DNS with filtering of sites for adults, preferred - 77.88.8.7, alternative - 77.88.8.3.

For more information about setting up DNS, read the article

It is impossible to imagine our existence without access to sources of information that the Internet provides. DNS servers are the connecting link of a network of computers. Unfortunately, sometimes errors occur in their work. In these cases, access to the Internet is limited or non-existent. Therefore, every user will benefit from basic knowledge on the topic.

What is a DNS server and why errors may occur

In simple terms, we can call the DNS server the address book of the Internet. Each computer connected to the network receives an IP address in the form of a digital value similar to this - 127.0.0.1. Each published website has a domain name - http://hostus.ru. The main task of a DNS server is to convert (translate) a domain name into IP addresses and the reverse process.

Video: explanation of how a DNS server works

Unfortunately, sometimes there are glitches in the chain. Errors occur. There can be quite a few reasons, let’s look at the most common ones:

• no internet connection;
• incorrect router or modem settings;
• incorrect firewall settings;
• The network card driver is critically outdated;
• computer infection with a virus;
• work on the provider's DNS server;
• software errors on the site.

Troubleshooting should begin by checking the simplest settings, and only if unsuccessful, proceed carefully to more complex actions.

Common DNS errors

Let's look at the most common errors that are usually easy to fix on your own. Typically the fix doesn't take too long.

The DNS server is not responding, the DNS server address cannot be found

Probably the most common problem.

This is what the error message looks like in the browser window

When an error appears as a result of an attempt to log in to a certain resource, and the others work fine, most likely problems arise on the site. There is no way to fix anything in this case. Be patient, maybe after a while everything will work as normal.

DNS errors may appear due to malfunctions in the router. And also the Internet provider may be to blame for their occurrence. Reboot or turn off the router for a while, perhaps this action will clear the error. There are no changes - try connecting the Internet cable to your PC or laptop directly, bypassing the router. If the action does not help, call your provider, the problem is probably on their side.

When all devices are working normally, but the error occurs on one computer, most likely it is due to the malfunction of the device itself. Consideration of such an error is worthy of a separate publication.

Windows can't contact the device or resource

Let's consider this option - the main applications continue to work, the Internet is connected, but the resource we need is unavailable, when accessing the site, a message appears on the screen: “The DNS address of the server cannot be found.”

The browser displays an error message

To find out the causes of the error, run network diagnostics:

Failure message when the system tries to connect to the DNS server

This error can have different causes. Methods for solving the problem are selected accordingly:

• the antivirus program is not working correctly - try disabling it temporarily or installing another one;
• DNS may be faulty - Windows client - open Control Panel, Administrative Tools, Services tab and restart the DNS client service, turn off and restart the computer.

If all of the above steps are unsuccessful, try resetting the DNS cache. Press Win+R, in the window that appears, type “ipconfig/flushdns”, start the process.

The DNS cache is cleared by running the command “ipconfig/flushdns”

After completing the steps, everything should work fine.

No access to DNS server

Users often encounter a situation where all devices are working normally, payment has been made to the provider, but there is no access to the World Wide Web. The cause of the error is incorrect Internet access settings. Everything can be fixed on your own.

To resolve the error, do the following:

1. In the "Start" menu, go to "Control Panel", item - "Administration", select section - "Services".

   Select the services item in the Administration section, Windows Control Panel

2. Find the line “DNS client”, there should be an inscription: “Working”.

   When DNS is running, the DNSP client line always contains the entry “Working”

3. If the line is empty, move the mouse cursor, press the left button, call the context menu by clicking “Properties”.
4. Next, in the “Startup type” column, specify: “Automatic”.

   On the tab you must specify the startup type: “Automatic”

Click "Apply" and "OK".

In a situation where the service is running but there is no network access, the following actions should help:

1. Log in to the control panel, there open the tab: “Network and Sharing Center”.

   Open the Network and Sharing Center tab in the Windows Control Panel window

2. In the “Changing adapter settings” section, call up the network connection context menu.

   Select "Change adapter settings" under "Network and Sharing Center"

3. In the tab that appears, click on the “Properties” line.

   On the “Local Area Connection” tab, select “Properties”

4. In a new tab, highlight the line “Internet Protocol 4 (TCP/IP 4)” and click “Properties” again.

   Highlight “Internet Protocol 4 (TCP/IP 4)”, click “Properties”

5. In the next window that appears, check the box “Use the following DNS server addresses.”

   Set the server IP address manually

6. In the “Preferred DNS server” line, type “8. 8. 8. 8.”
7. The line “Alternative DNS server” should be filled in like this “8. 8. 4. 4".
8. Click "OK".

If everything is done correctly, but there is no positive result, there is a high probability of Windows errors. Try performing a system restore to the last point when everything was working correctly. To do this, go to the Start menu, Control Panel, Recovery. Select a restore point, run the procedure, restart your computer.

If the browser continues to generate an error, the following actions are possible to solve the problem:

Such manipulations will help identify the application that interferes with the normal loading of sites.

Another cause of the error may be outdated network adapter drivers. Find its model. On the manufacturer's website, download new programs and install.

If none of the above helped, then your computer is attacked by a virus, do the following:

1. Download the healing utility Dr. Web CureIt or another with similar functionality.
2. Perform a full scan of your computer.
3. Remove infected files.

There is one more error worth noting. Sometimes when you try to access the Internet, you can see the message: “Unable to resolve the DNS server address.” Most often, the error is associated with repair work on the DNS service that provides network access services. Check your Internet connection by connecting another computer or laptop to it. If the error appears on all devices, contact your provider. In the case where the error is specific to one device, your actions are similar to correcting the “no access to DNS server” error. Your system appears to be sending incorrect queries to the DNS server.

Software errors

These include DNS failures caused by software errors in servers and individual sites.

A temporary DNS error has occurred

This message is caused by DNS problems in Exchange 2013. Microsoft Exchange Server is a messaging and collaboration software product. It is not entirely clear what “Temporary server error” means. Please try again later. PRX 3". At the end there is also PRX 1, PRX 3, PRX 7. Unfortunately, there is no documentation.
There are different ways to solve the problem. If your computer has a built-in network card and an additional external one installed, disable the one that is not in use. To do this you need to do the following:

• start the PC or reboot if the computer is turned on and when starting the BIOS, press the F12 or Del key;
• To enter the settings, use the F1, F10 and other keys - if you don’t know which one to choose, read the text “Press... to enter Setup”, where the desired combination will be written;
• in the parameters, open the section with the word Integrated, where you will need the line On Board LAN or something similar;
• change the status of the line to Disabled to deactivate it;
• Don't forget to use the Save and Exit button to save your changes.

BIOS panel, through which changes are made to the hardware configuration

Be careful, if you do not have confidence in your actions, do not experiment with the computer BIOS, it is better to invite a specialist.

When there is only one network card or disabling the second one does not help clear the error, try the following actions:

Failed to resolve DNS domain controller name

A specific error that is rarely encountered by ordinary PC users. Typical for systems included in Windows domain networks running Active Directory. AD represents a set of processes and services that allows you to centrally manage the local network infrastructure. All computers on the network are united into a common domain. The error occurs when trying to introduce a new server to the domain. The system displays the message “Failed to resolve DNS - domain controller name.”
Try the following:

Couldn't load the page because the site wasn't found in DNS

The error mainly relates to the work of webmasters. When registering a new domain, DNS servers do not know its address. Until information about it appears on the DNS servers, the website, mail, and other elements will not work. The DNS server registered for the domain acts as a “herald”, thanks to which the site address will become known to other servers. First, domain information appears on the hosting DNS. If you are the owner of a website, and when you try to open it, the error “the address for the domain of this website was not found on the DNS server” is displayed, contact your hosting administration.

A similar error may occur when transferring a domain to another hosting. In this case, the domain name of the site is the same, but the IP address changes. To solve the problem, you need to contact your hosting administration.

Other common mistakes

In addition to those already discussed, other problems may arise related to the DNS server.

Table: common DNS errors and how to resolve them

At first glance, the problems listed in the article seem complex and almost unsolvable. But having thoroughly understood the topic, everything can be corrected on your own. This will require patience and time. But the main thing you need is desire.

Users usually start the troubleshooting process when they encounter a yellow exclamation mark on the Internet icon. After the procedure, the system may display the message “DNS server is not responding.” What this means and how to deal with it, we will tell you in the article. The solution may be trivial (for example, rebooting the router or changing the browser), in some situations you will have to check the functionality of the DNS service or clear the cache.

What does this error mean?

Most people don't know what a DNS server is or what it's for. Each resource on the Internet has its own IP address, consisting of 4 bytes. But the user is not able to remember the numerical addresses of numerous sites, so domain names (names of sites that you enter into the address bar) were invented. The DNS server serves to associate a domain with an IP address, so that the user gets to the desired resource.

Now that you know what DNS is, you can understand why your computer won't connect to the Internet. Typically, the DNS server is unavailable due to network problems. Problems with the provider may well be the cause of this error. But there may be situations when the source of the problem is your computer. In the following chapters, you will learn what to do if the DNS service is not responding.

Primary actions

If you encounter the DNS server is not responding message, do not panic, because the problem may not be the resource itself, but the device. Recommends performing a number of simple steps that will solve the problem in most situations:

• Reboot your computer and router. Unplug the router and leave it turned off for a few minutes. Turn on your router and then boot up your computer.
• Change your browser. If the error appears in your browser window, try a few alternatives.
• Update your network drivers. An outdated driver is a common cause of the error discussed. Download the necessary software from the official website of your network card manufacturer.

Contact the provider

After the initial steps, contact your provider to find out why the server is not responding. The provider may require your full name, contract number, model of the router used or other information. If the problem is on the side of the service provider, you do not need to perform any manipulations. It is enough to wait for corrections. Otherwise, proceed to the subsequent paragraphs of the article.

Checking the DNS client service

The DNS client may be disabled on the computer. In this situation, all previous steps will be ineffective. The following instructions will help you check the client’s status and enable it:

Now you know one of the reasons why the DNS server is not responding. Activating the client will clear the error so you can freely use the Internet.

Changing addresses or settings of DNS servers

Client activity does not guarantee full functionality. Incorrectly configured settings may limit access to the global network. As a rule, the settings include the option to automatically obtain DNS addresses, but the router may give them incorrectly. You must set the addresses manually. Follow these steps to make the correct setup:

You can also obtain DNS server addresses from your ISP. Now you know how to fix the DNS server not responding error.

Clearing the DNS cache

To speed up access to specific sites, the computer caches information about DNS servers. The information is located in the Windows system partition. Often this cache is outdated, and therefore leads to incorrect operation of the system, which becomes the cause of the already known error. The solution to the problem is simple - clear the cache. The procedure is performed using the command line or restarting the appropriate client.

You can get to the command line in the following ways:

• Windows 10: Right-click Start and then select Command Prompt (Admin).
• Windows 7/8/8.1. Press Win + R, type cmd and press Enter.

On the command line itself, enter the following commands in sequence:

• ipconfig /flushDNS;
• ipconfig /registerDNS;
• ipconfig /release;
• ipconfig /renew;
• netsh winsock reset.

After each of them, press Enter. The final step is to restart your computer. Clearing the cache will help solve connection problems when DNS is not responding. An alternative way is to restart the client. To do this, enter the list of services (described in detail in the DNS service check paragraph). Right-click on the desired line and click “Restart”.

If you encounter problems accessing websites, we recommend that you regularly clear your cache.

Setting up a firewall

Windows has its own security features. Their list includes “Windows Firewall” (or in other words, firewall). A firewall can block access to resources that it considers potentially dangerous to your computer. If you are confident in the reliability of the resources you are using, you can disable the firewall on your computer.

Disabling occurs in a few clicks:

Attention! On some systems, the firewall settings will be unavailable, as their powers will be taken over by the antivirus. In this situation, you will have to temporarily disable your antivirus to change the settings. Disabling FireWall in some cases removes the “no access to DNS server” message.

Checking the system for viruses

On Windows 10 and other OS versions, the “DNS server is not responding” message may be caused by malware. Viruses can completely block access to the network or to individual Internet resources. It is recommended to scan the system with an antivirus or using Live media (for example, a flash drive).

VPN and other programs

To solve the problem when the DNS server does not respond, specialized software will help, which allows you to manually install a server from the list of available ones. A prominent representative in this segment is DNS Jumper. The program does not require installation. The application can select a service automatically, but if necessary, the user can manually set the desired server.

It’s unpleasant to encounter problems with your Internet connection, but sometimes it can’t be avoided. One common failure occurs when the server's DNS address cannot be found. Let's look at what this problem is and how to fix it.

Description of the error

DNS (Domain Name System) is a bridge between human and computer perception in the sense that it allows you to convert a user-friendly alphabetic domain name (what is written in the address bar like “www.google.com”) into a numerical equivalent (host IP address) that is machine-friendly .

A DNS error (aka "Error 105", ERR_NAME_NOT_RESOLVED) occurs when the web browser is unable to perform the translation, then the site will not be accessible.

Troubleshooting steps

First of all, you need to find out at what level the failure occurred.

Possible options with signs:

• problems at the site level— an error is issued when loading only one site, others open;
• problems at the provider level— not a single device in this local network loads pages, there is an error everywhere, when the same device is connected to another network, the connection works correctly;
• router level failure- the signs are the same as in the previous case;
• computer level error— Internet problems are not detected on other devices connected to the same network.

Solving the problem at the PC level

First of all, make sure that the DNS service is running and restart it:

Did not help? The next step is to clear the DNS cache.

Changing the DNS server address

Alternative DNS server

If the previous steps did not lead to the desired result, you can connect to another DNS server. In this case, DNS requests will be addressed instead of the provider's server to the one you specify. This method can also be used to bypass restrictions that ISPs may impose on websites.

Please note the following point: changing the DNS server address to one that is publicly available puts your data at risk. For security purposes, use servers with a good reputation, for example, Google Public DNS, OpenDNS, Yandex.DNS.

Setting up Google DNS

Go to “Network Connections”, select the connection to your network, TCP/IPv4. Check "Use the following DNS server addresses" and enter Google IP addresses: 8.8.8.8 and 8.8.4.4.

The addresses of other servers are written in the same way.

Features of Google Public DNS

When using Google servers, request processing may be slower than when working with local provider servers. The reason for this phenomenon is the remote geographical location, due to which the request needs to travel a greater distance.

To counteract the possible delay, Google uses its own technologies for scanning the Internet and caching information, which benefits performance.

A possible reason for the error when loading a specific site is that it has moved to another IP address while the information on the local DNS server has not yet been updated. Because Google crawls the web constantly, the information on its servers is more up-to-date, and connecting to them may solve the problem.

Antivirus malfunction

Problems with your Internet connection can be caused by a faulty antivirus. To find out if this is your case, put your computer in safe mode.

For Windows 10, switching is carried out in the following way:

In safe mode, the antivirus software does not turn on; if sites load normally, the antivirus is the source of the problem, you need to reinstall it.

Checking the router

Problems at the Wi-Fi router level are no different in “symptoms” from a failure at the provider level, but there is a way to distinguish them.

Disconnect the Ethernet cable from the router and plug it into the computer connector.

This will establish an Ethernet connection. If, when connecting directly, the problems with the Internet are resolved, the problem is with the router, and it needs to be rebooted.

To reboot, turn off the router, wait 10-30 seconds and turn it on again.

In other cases

If you have tried all the above methods and the problem still persists (no page loads), contact your ISP.

If one specific site produces an error, the cause of the failure is on the side of its owners or hosting. In this case, you will have to wait. Sometimes a search query like “why is the site xxx.yyy.com not working” can be informative, which can shed light on the source of the problems.

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