What if the DNS server is not responding? DNS server is not responding

The problem when the DNS server does not respond persistently haunts users of the Russian segment of the global network. Although you can easily get rid of most of the difficulties that arise simply by reconfiguring the DNS for the proper functioning of the Internet on the user’s computer.

If the DNS server is unavailable, and all the user’s devices are in good condition and there are no financial debts to the provider, then, as a rule, there is no access to the World Wide Web due to incorrect settings. You just need to know how to correct errors in the settings and there will be no difficulties with Internet access.

Below is a detailed guide to fixing the problem; you just need to strictly follow all the sequential steps of the instructions.

What are DNS servers used for?

What is it and why are DNS servers needed? When going to any site on the Internet, a certain directory on the server becomes available to the user. This section stores information that the user's computer's Internet browser reproduces in the form of a familiar web page. All servers have an individual “IP”, through which login is carried out.

The main requirement for DNS is that they provide accurate redirection from the “IP address” to domains that no longer have a digital address, but an alphabetic one..ru.” On the World Wide Web, this site has an IP - 46.36.219.125..36.219.125, because machines can only understand numeric codes, not alphabetic ones. However, sometimes it happens that the servers do not work correctly and then an unpleasant message is displayed on the user’s monitor: “The DNS server is not responding.”

A yellow triangle with “!” appears on the Set panel. inside.

Next, we will consider step by step what to do in such a situation.

Instructions for troubleshooting

The following sequential steps must be performed:

When the above service is running, but there is still no Internet access, you need to take the following steps:

If there is no access to the Internet after carefully following the above steps, most likely there are errors directly in the operation of Windows. You can use the well-known function of rolling back the OS to a time when everything worked fine. To this end, you only need to take a few steps:

1. Through “Start” open the “System Restore” window;
2. Select a restore point and roll back the system.
3. Restart PC.

Most common difficulties

Often, such difficulties arise when users entered network settings incorrectly or because the computer was infected with malicious applications. Therefore, it is recommended to make sure that the anti-virus databases of the installed utility are up to date and that the firewall is active.

Sometimes problems appear due to incorrectly entered parameters in the interface of your router or banal omissions of some items in its settings.

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 start the computer again.

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 carefully understood the topic, everything can be corrected on your own. This will require patience and time. But the main thing you need is desire.

Not often, of course, but sometimes users, when trying to access Internet sites, are faced with the fact that the browser installed on the system displays a message stating that the DNS server is not responding. Not every user knows what to do to fix the problem, but there are several simple solutions, which will be discussed further.

Why are DNS servers needed?

First, a little theory. In essence, it is a kind of interpreter that makes it possible to convert numeric addresses of Internet resources into letter designations of domain names.

This saves the user from the complex procedure of remembering and entering the resource address in numerical terms. It's too inconvenient. Many people know that today an address is entered in a line, consisting of letters, numbers and other symbols with an addition in the form of a domain, which looks much simpler in practice.

Possible performance problems

Now let's look at some problems when for some reason the DNS server does not respond. What to do to troubleshoot problems will become clear if you look at the causes of failures.

As a rule, among all the things that can cause failures are problems on the part of the provider, incorrectly set TCP/IP parameters, exposure to viruses, spontaneous changes in parameters by specific software, etc.

DNS server does not respond: what to do (Windows 7)?

The first thing to do when such problems occur is to check the activity of the DNS client. To do this, use the services section, which can be accessed by entering the services.msc command in the Run menu (Win + R).

Here you need to find the line indicating the DNS client and look at the startup type used. The value should be set to automatic. If something else is set, the parameter will have to be changed by right-clicking the menu where the properties line is selected.

But this is not all that can correct the situation if the DNS server does not respond. What to do when a corresponding message appears? You need to check that the TCP/IPv4 parameters are correct (this protocol is the most commonly used). To do this, you will need to enter the network properties section from the network management section. Then open the window for changing adapter properties, specify the desired connection and use the connection properties, where you need to find the appropriate protocol.

When calling its properties, you should look at the set parameters. In most cases, the provider provides automatic value assignment services, but sometimes they need to be entered manually. In the Preferred and Alternate DNS server lines, you simply enter the correct values ​​and save the configuration changes.

The DNS server is not responding: what should I do? Rostelecom

However, even after this the problem may not disappear. In particular, this applies to the Rostelecom provider, which provides its own parameters for configuration. But they may not work, and the system will again issue a warning that the DNS server is not responding. What to do in this case? Use a different (alternative) configuration.

For example, you can rearrange access by specifying the DNS servers of Google services. To do this, in the properties of the above protocol in the server value lines, you need to enter the following parameters: for the preferred one - two digits 8 and two digits 4, for the alternative one - four digits 8. There is nothing wrong with swapping the values ​​for the alternative and preferred server.

Finally, if this option does not work, you can do a complete reset and update the configuration. To do this, use a command line launched at the administrator level, in which the command ipconfig /flushdns is first written, then ipconfig /registerdns, then ipconfig /release, and finally ipconfig /renew. After entering each line, press the Enter key.

Conclusion

It remains to add that at least one of the above solutions will eliminate problems with However, issues related to virus exposure or the fact that some types of software that require constant access to the network can spontaneously change the configuration (for example, when constantly checking licenses) were not considered here. . Here you will have to use completely different methods.

02/28/2014   windows | Internet

If you see a message when you try to open a website in your browser Error 105 (net::ERR_NAME_NOT_RESOLVED): The server's DNS address cannot be resolved, then you are on the right track and, I hope, one of the methods outlined below to fix this error will help you.

The problem may appear after installing a program, uninstalling an antivirus (Avast, for example), changing the network settings by the user, or as a result of the actions of a virus or other malicious software. In addition, the message “The server’s DNS address cannot be resolved” may also be the result of some external factors, which we will also talk about.

First thing to check before proceeding with the following steps

Chances are that everything is fine with your computer and nothing special needs to be fixed. Therefore, first of all, pay attention to the following points and try to use them if you are caught by this error:

• Check whether the error “Unable to resolve the server's DNS address” appears when logging into one site or all sites. If it’s only one, then perhaps something is being changed on it or there are temporary problems with the hosting provider. You can wait, or you can try clearing the DNS cache using the command ipconfig/flushdns on the command line as administrator.
• If possible, check whether the error appears on all devices (phones, laptops) or only on one computer. If at all - perhaps the problem is with the provider, you should either wait or try Google Public DNS, which will be discussed later.
• If the connection is made via a Wi-Fi router, unplug it and plug it back in, try visiting the site: the error may disappear.
• If the connection is without a Wi-Fi router, try going to the list of connections on your computer, turning off the Ethernet (Local Area Network) connection and turning it on again.

Using Google Public DNS to fix a server DNS address resolution error

If the above did not help fix the error, try the following:

Try visiting the problematic site again and see if the error 105 is still there - the server's DNS address cannot be resolved.

Check if the DNS Client service is running

Just in case, it’s worth checking whether the service responsible for resolving DNS addresses is enabled in Windows. To do this, go to the Control Panel and switch to the “Icons” view if you have “Categories” (default). Select "Administration" and then "Services".

Find the DNS Client service in the list and, if it is “Stopped” and does not start automatically, double-click on the name of the service and set the appropriate parameters in the window that opens, and at the same time click the “Start” button.

Resetting TCP/IP settings on your computer

Another possible solution to the problem is to reset the TCP/IP settings in Windows. Previously, this often had to be done after uninstalling Avast (now, it seems, not) in order to fix errors in the Internet.

The easiest way to do this is to download the Microsoft Fix it utility from the official website page http://support.microsoft.com/kb/299357/ru

The same page describes how you can reset TCP/IP settings manually.

Checking your computer for viruses

If none of the above helped, and you are sure that the error is not caused by any factors external to your computer, I recommend scanning your computer for viruses.

You may already have some kind of antivirus installed, but I would recommend checking with one of these (I do not indicate Internet Security or Antivirus in the name, in this case it does not matter):

• Kaspersky (free trial is fine)
• Bitdefender (free trial available)
• Panda

The degree of detection and the ability to remove viruses, while returning the system parameters to working ones, in my opinion, are higher for these antiviruses than many others, so a complete scan of the system by one of them may well help get rid of the error when it is not possible to convert the DNS address to browser.

The problem of permanent unavailability of DNS servers (English Domain Name System), unfortunately, continues to persist in the Belarusian segment of the World Wide Web.

How does a DNS service failure manifest itself on a computer or laptop?

In the system tray (notification area near the clock): network icon with an exclamation mark. At the same time, there is money on the provider’s balance sheet; The computer (laptop) is working fine.

This problem also occurs on the popular HUAWEI HG532e ADSL modem. Sometimes a given device begins to work correctly only after it is restarted.

When running the ping command through the command line interpreter: only a blinking cursor is visible.

Steps to troubleshoot DNS issues

To resolve a DNS issue:

1. check whether the DNS client service is running on the computer;
2. We switch to public DNS from Google.

Checking the functionality of the DNS service in Windows

On the computer, press WIN+R (Windows icon on the keyboard).

In the window that appears, type the command services.msc. A complete list of services will appear, find the DNS client. We check the startup type - Automatic, Status - running. OK. If that’s the case, let’s move on….no? Let's fix it.

Next we switch to public DNS from Google

In the Use the following DNS server addresses tab, enter the values:

• in the first field (preferred DNS server) - 8.8.8.8
• to the second (alternative DNS server) - 8.8.4.4

Click OK and close. Now our computer is configured to receive DNS addresses from the Google Public DNS service. In some cases, it is better to configure the DNS server directly in the router interface, as is the case with.

This completes the manual setup of your computer to work with Google Public DNS.

Typically, setting up your computer's network card to work through Google's public servers is enough to resolve the "DNS server is not responding" error problem.

At the same time, the speed of opening sites may increase slightly - Google owns an extensive network of powerful servers around the world.

It is possible to automatically configure DNS using special software. The program is quite interesting in this regard.

It can change DNS settings with the click of a button. The functionality also allows you to recommend the fastest one.