Every user knows how it hurts.when the internet connection goes down. With a computer or router, everything seems to be in order, but when diagnosing problems, the system writes “The DNS server is not responding.” What to do in this case, they know not all. And before you decide to fix the problem, first you need to figure out what exactly can be associated with a failure.
First, let's take a quick look at what a server is.DNS. As you know, every computer or server connected to the Internet has its own unique IP address (if it is static and does not change). But you won’t memorize such a huge number of digital combinations to access a certain resource.
Using a DNS server allows you to "bind"address to the domain name. Therefore, in the address bar information is entered in the form of a combination of letters, numbers and symbols. It is enough to remember even the name of the resource, and through DNS when you enter the address you will be redirected to the associated IP. Only such services can sometimes fail. Next, we will consider what to do if the DNS server is not responding, but for now, a few words about possible problems.
In general, the errors themselves can be divided into two broad categories: problems from the provider or the visited resource and failures associated with incorrect settings of user computers.
In the first case, do something forCorrecting the situation is meaningless, because, as is already clear, nothing depends on the user here. Another thing, when errors appear due to the "meeting" or deliberately changing network settings in the operating system. And here the reasons can be quite a lot. But among the most common are the following:
As for the short-term failures, which really occur quite often, no computer system is insured against them.
Suppose that during diagnostics the system issuesA message that the DNS server is not responding. What to do? WiFi seems to be working, but there is no access to the Internet. First you need to check the connection from another device (at least from a mobile phone). If there is a connection, then the matter is in the computer terminal itself. In this case, you should simply perform a full reboot.
Если же подключение отсутствует на всех Devices, perhaps, it's in the router. For it, you need to perform a reset (reboot). However, using the Reset button, which is usually located on the back panel, is not recommended (although you can hold it for a few seconds). It is best to completely disconnect the router from the power supply for about 10-15 seconds, and then restart it. Some users advise to turn off for a period of 15-20 minutes, but, I think, this is unnecessary. It may well be that after a reboot, access will be restored.
Sometimes installed antivirus and even embeddedWindows Firewall may block DNS operation. In this case, first you need to temporarily disable anti-virus protection and try to open a website.
If everything is normal (and the resource is safe), it should be added to the list of exceptions.
The same goes for the firewall.First you need to disable it, but if its use is absolutely necessary, you need to add at least a used browser to the new exception rule. In the end, the browser itself can be changed to another. Perhaps the reason is the same in it.
Однако как показывает практика, очень часто errors are related to incorrect settings. Suppose the ByFly DNS server is not responding. What to do in this case? Resolving the problem is to change the DNS settings.
Сделать это можно в разделе «Центра управления Networks and Sharing ”in the Control Panel, where you select the menu for changing network adapter settings. Here you need to find the currently used IP protocol (usually IPv4) and go to its properties.
In most cases, the fields preferred andalternative servers will be given the parameters obtained during the connection. For starters, you can set to automatically obtain the address for the DNS server.
If this does not help, you can use opencombinations like Google-services, which consist, for example, of four eights and four fours, two eights and two fours, etc. There are enough variations. This method almost always helps.
But these were only the network settings.And what if there are incorrect parameters on the router? Indeed, in this case, an error message will also be displayed, and the user will again begin to wonder what to do if the DNS server does not respond.
Have to look at the settings of the router,by entering them from any browser by entering the address indicated on the label below (as a rule, it starts with a combination of 192.168, and the last two digits, depending on the model, can be either 0.1 or 1.1).
Now you need to use the WAN partition.Actions are similar to what was done in the IP settings. If nothing is specified in the address fields, addresses are assigned automatically. There is nothing easier than writing in them the combinations specified in the protocol settings.
But the above actions may not haveproper exposure. What if the DNS server does not respond, in this case? One solution could be to check the service itself (perhaps, for some reason, it was stopped).
To do this, go to the appropriate section,using the Run console (Win + R) and writing services.msc in it. Here you should find the DNS client service and look at its status. If the client is deactivated, double-click on the settings menu, press the power button, and in the startup type set “Automatic”.
Rarely, of course, but you can meet problems with network card drivers. What if the DNS server does not respond, and the driver is to blame for that? Just update them.
This is done from the "Device Manager", whichcan be called from the administration section, the “Control Panel” or from the “Run” menu with the devmgmt.msc command. Through RMB, the driver update line is simply selected. If the user has a non-standard network adapter, it is better to download the latest driver from the manufacturer’s website, using the identifiers VEN and DEV (it’s best to use the longest line in the description).
However, not to mess around yourself, you caninstall automated utilities like Driver Booster, DriverPack Solution or something else. Update after scanning and confirmation will be performed automatically and without user intervention.
Finally, if all of the above actions did not have the desired effect, you can try to clear the DNS cache and reset all configuration settings.
To do this, run the command console (required on behalf of the administrator), and the following commands are written in it (without punctuation marks):
After executing all these commands, it is not necessary to restart the computer system. But for fidelity, restarting is still worth it.
All the solutions described may be completelyinoperative only due to the fact that some malicious virus or malicious code has firmly settled in the system, which spontaneously changes its settings by its actions. In the case when DNS failures are not related to any of the above reasons and are not observed either by the provider, or by the resource, or by the user, you will have to perform a full in-depth scan of the system.
Regular antivirus will not work, so it's betterjust use utilities like Kaspersky Rescue Disk, which check before the OS starts (they need to be written to removable media and booted exactly from it, setting the appropriate priority in the BIOS settings).
