Sometimes there are situations when Yandex browser users do not have access to a specific site or several at the same time, which is why a message with the text “technical information: connectionfailure error” may appear.
Most often, users encounter it for a number of different reasons, and in most cases it is almost impossible to prevent it.
This error means that the computer does not allow access to the site, or the resource itself is blocked. Let's take a closer look at what this "connectionfailure" error is and look at the possible causes of the problem and the best ways to solve it. Each method has its own characteristics, so we will consider them in detail to effectively eliminate failures.
If the first method did not help you properly, then you should move on to the next one on the list, and so on until the problem is completely eliminated.
Antivirus operation
If you receive a connectionfailure error, the first thing you need to do is check whether the antivirus program installed on your computer is affecting the connection to the resource. Only after this can you think about how to fix the problem.
To do this we do the following:
That is, this is how you can quickly and easily fix the problem indicated by this error.
Parental control
Almost all antivirus programs and other special utilities that exist today have this function. Moreover, it is also a standard feature of the Windows operating system.
Its essence is that the administrator has the ability to set specific restrictions on the use of both the network and individual programs. And when you try to access a website, a connectionfailure error may appear.
That is, if this function is activated and the site address is indicated in it, you will not be able to gain full access to it. If the problem is related to this, then you can easily solve it. To do this, you need to contact the administrator and ask to open access to the resource you need.
Clearing browsing history, cookies, cache
You should try accessing the desired site using a different browser. If the attempt is successful, then the problem is most likely in your Yandex browser. In this case, you should try to solve the problem by clearing cookies, cache and history.
To do this we do the following:
This way, we can clear your browsing history and other related data, which should help fix the problem.
Viral activity
Also, the connectionfailure error may indicate the presence of viruses in the system. As you know, viral activity not only causes “glitches” in the system, but also contributes to the appearance of various types of errors, including in the operation of Yandex Browser.
Therefore, you should definitely check your computer for viruses using or, and if threats are detected, eliminate them immediately
If eliminating viruses and removing virus software did not help solve the problem, and sites still do not open in the Yandex browser, then you need to reinstall it as indicated in the previous method.
Correcting the "hosts" file
As a result of exposure to viruses, the “hosts” file can be changed, which directly affects the opening of links and sites in the Yandex Browser. Since the connectionfailure error usually appears due to the activity of malicious software, after scanning the system for threats, be sure to fix this file.
First you need to enable the display of file extensions.
To do this you need:
If you have cracked software installed, then after these steps the activation may fail. In this case, check the hosts file manually by opening it using Notepad. Find the line “127.0.0.1 localhost” and make sure that there are no suspicious entries below this line, such as “fh2р3sjkdhf.com”.
There may also be a ban on editing this file, so to make changes to it you should boot into safe mode.
Now all that remains is to restart the computer, after which the procedure will be completely completed.
Clearing the DNS cache
You can also resolve the connectionfailure error by clearing the DNS cache. The fact is that if the cache is cluttered, failures may occur when connecting to DNS servers. As a result, this message appears.
To correct the situation, you need:
After this, check the functionality of the Yandex browser, the problem should be fixed.
Cleaning the Temp folder
Temporary files that programs and utilities create are stored on the computer in the “Temp” folder. That is, to restore the browser and eliminate conflicts among the contents of this folder, you should try to clear it as follows:
After this, you should restart Yandex and try to load the desired site, the error should disappear.
Contacting your Internet provider
If the connectionfailure error appears not only in Yandex Browser, but also in other web browsers, most likely the problem is on the provider’s side. Contact the provider whose services you use and clarify this issue. Also find out what recommendations they can give you.
Often, providers provide all-powerful support and help fix the problem or give an exact time frame for when they will restore everything themselves.
Restoring the site
If a problem occurs exclusively in relation to a specific site, while other resources work without any problems, then you should not discount the possibility that the problem is related specifically to the operation of a specific site.
Wait until the resource owners fix it; usually problems of this nature are fixed very quickly. This often takes only a few hours.
Reset
The next thing to try is to return the settings to their original state.
For this:
Most likely, this will help fix the connectionfailure error, but if not, move on.
Deleting a user profile
The next thing you need to do to correct the situation is to try deleting the existing user profile. This will delete the information accumulated by the browser and possibly solve the problem.
There is no doubt that a huge number of owners of PCs and modern mobile equipment use their equipment to access the Internet. Sometimes an attempt to access another site is prevented by an unpleasant message - technical information connectionfailure error.
Naturally, you should initially try to understand the causes of its occurrence before starting treatment.
So what does connectionfailure mean? Indeed, there is nothing in the message itself that can help the user identify the root cause of its occurrence.
Nevertheless, there are a number of possible preconditions for the occurrence of such a nuisance:
- Blocking by the built-in Windows Defender.
- Similar actions taken by the antivirus software you are using.
- The presence of any infections in the system.
- The Internet browser you are using is malfunctioning.
- External factors.
The OS firewall is indeed capable of blocking access to a site if it considers it potentially dangerous. On the other hand, the user can sometimes be completely sure of the opposite.
In this case, you can temporarily deactivate the security software:
It is advisable to return the settings to their original state later.
The same should be done with the settings of the antivirus software used. Or add the problematic Internet resource to the exceptions. In every program of this type, this is done in the settings menu.
What to do if the failure is related to the operation of the Internet browser? For example, connectionfailure error - how to fix it in Yandex browser?
There are several recommendations: 
To eliminate virus infections, it is advisable to use a good tool. For example, you can download, install and run a full system diagnostic using Kaspersky Virus Removal Tool.
The last possible root cause is external factors. These may be problems on the server side where the online resource is located. You can wait until it is restored to working order or write to its owner via contact details to describe the situation that has arisen. Another way is to check the ability to access the Internet.
If you have access to a mobile alternative, switch to it. When you open the required page, write or otherwise contact your provider so that he can promptly resolve any failure of his service.
Quite often, users encounter various problems when using the Internet, and one of these common errors is connectionfailure. It manifests itself in a rather strange way. Some sites open completely smoothly, while others refuse to work.
It happens that over time the problem disappears and everything works well, but quite often the error haunts users for several weeks or even months. Therefore, it would be useful to understand what to do in such a situation.
Rice. 1. Appearance of the error
Reasons for appearance
To solve and understand the problem, we need technical information: connectionfailure error, which may appear due to problems with the computer or with the provider. In the second case, you just need to wait until specialists repair the equipment or remove the mistakenly installed lock.
The best thing to do is to call your provider and ask why the connectionfailure error occurs and how to fix it. It happens that the provider specifically blocks access to certain resources, and its representative will tell you about this. As a last resort, experts will suggest a solution to the problem.
Tip: If the problem appears in the office or in another place where there is a user with super administrator rights, be sure to ask him if he has installed any locks. The fact is that Windows has a feature called “Parental Controls”. It gives the right to restrict access to certain resources and programs.
But you should call only after you have ruled out the following causes of the problem:
- blocking by firewall;
- blocking by antivirus;
- blocking from the hosts file;
- problem with windows browser;
- broken DNS settings.
Now let’s look at each of these options step by step.
Disable the firewall
If this error is specific to a specific site or several resources, it is quite possible that the defender built into the Windows operating system is blocking it. It should protect the OS from viruses and other threats, but sometimes it perceives something completely safe as a danger.
It is impossible to configure it so that the firewall does not touch a specific site or program; all that remains is to disable it.
And this is done as follows:
1 Open the Start menu and type “firewall” in the search bar. There are several programs, you need to open the one called "Windows Firewall"(no additional words).
Rice. 2. Programs found in the Start menu for the query “firewall”
3 Place marks next to the two inscriptions "Turn off Windows Firewall..." in the “Settings for a private network” and “Settings for a public network” block.
Rice. 3. Disable windows firewall
4 Close any open windows. The set parameters will be saved automatically. Wait a few minutes and try to access the problematic resource again.
If nothing changes, then this is not the problem and you can turn the firewall back on. This is done in the same way as described above, but instead of marking the items "Disable..." you need to put the same marks on the items "Turn on".
In the case where this action really helped, it is best to leave the firewall turned off. There is no need to worry about the security of the operating system. To protect it, just install some good antivirus (for example, one of Kaspersky's products).
Use it to regularly check for malware. Interestingly, in some cases there is a blocking by the antivirus, due to which connectionfailure appears.
Checking and setting up antivirus
Sometimes a situation arises when an antivirus program detects some kind of threat on one site several times and over time adds it to the list of addresses that it will block.
Although it happens that an antivirus simply blocks this or that resource, for reasons known only to God. And this becomes the cause of this problem.
To check this option, you need to disable the antivirus for a while and try to open a resource that previously had an error called connectionfailure.
Usually this can be done by clicking on the program shortcut in the tray and selecting "Exit". For example, in Kaspersky Free it looks like the figure below.
Rice. 4. Shutting down Kaspersky Internet Security
If the problem disappears, you need to look for a list of URLs that your antivirus is blocking. Where it is located in each specific case, you need to look in the instructions for the antivirus program or on its official website. The most convenient way to find this list is in ESET Nod32. There it is done as follows:
1 From the main menu, press "F5" on keyboard.
2 Open sections step by step "Internet and email", then “Protecting Internet access” And "URL Management".
3 Actually, there you will see the entire list of addresses to which ESET will not allow you. To remove one of them, select it and press the button "Delete" at the bottom.
Rice. 5. List of blocked URLs in ESET Nod32
4 Finally, press "OK" at the bottom of the open window and close it.
After this everything should work well. If you don’t know how to find such a list in your antivirus, remember that it must be somewhere in the settings.
Checking the hosts file
It also happens that connectionfailure is a problem in the hosts file. It appears due to the action of viruses or simple bots that edit this system file. To check this option, do this:
1 Go to the system drive through “Computer” (most often this is the C: drive).
2 Open the folder "Windows", then "System32", "drivers" And " etc"(sequentially).
3 The file we need will be there. Open it up via Notepad or another text file reader.
4 Check that under the stitching "#127.0.0.1 localhost" there was nothing. If there is anything there, delete it all. The system could not enter record data.
Rice. 6. Correct hosts file
It is worth saying that if changes in the hosts file occurred once, they may well take place again, over time. So be sure to run a full scan with your antivirus.
Tip: If you have a weak antivirus (or you doubt its competence), use one of the special viruses removal utilities - AdwCleaner, Malwarebytes Anti-Malware Free, Junkware Removal Tool and others.
Troubleshooting browser problems
In most cases, the problem can be resolved by simply updating your browser. It’s best not to try to go into the settings and “fix” something there. If the browser has already become problematic, remove it and install a more current version.
This is done extremely simply - you need to go to the official website of your browser and download it. During installation, you will be informed that the program will be updated and not reinstalled.
For example, in Opera it looks like the figure below. There you need to press a button "Accept and update".
Rice. 7. Installing the update in Opera
But it happens that even after updating the browser, the error does not disappear, since the user settings are saved in it. This situation occurs, for example, in Yandex Browser or Google Chrome. There you need to log in to the user profiles page to use the program.
Fixing an error in Yandex.Browser
We hasten to please users in the Yandex browser - the problem is also solved quite simply. You need to do the following:
1 Go to settings, open the section "Additional".
2 In section "Personal data" open "Content Settings".
3 Check the boxes next to “Allow sites to offer to process protocols”, “Run plugins only for important page content...” and “Block pop-ups...”
Rice. 8. Correct Yandex Browser settings
This instruction is also relevant for Chrome.
All the above-mentioned causes of the problem are related to various software. But the reason for the appearance of connectionfailure can be not only programs and utilities, but also the internal resources of the computer, and specifically, broken DNS settings.
Resetting DNS
There is no point in trying to configure DNS; it is best to simply reset these settings. This is done as follows:
1 Open the command execution window by simultaneously pressing the buttons "Win" + "R" on keyboard. In the input field write "cmd" and press "Enter".
2 The console will open. There enter "ipconfig /flushdns"(you can copy it directly from here) and use “Enter” again.
Rice. 9. Enter the command ipconfig /flushdns + “Enter” in the console
If even after this nothing changes, seek help from your provider. Perhaps he has paid computer help services. Or you just need to check the settings on the provider's side.
Thematic video:
It often happens that a user is denied access to a specific site or even several resources, which may require technical information about the Connectionfailure error that is displayed in the program window.
Everyone should know what to do in this case, since even from this resource it may not be possible to obtain data later.
Contents:
Causes
There are many reasons for this problem and each of them has its own special solution. But before examining each case separately, it is worth outlining the range of problems.
Their set can be conditionally divided into 2 types, which have radically different solutions.
The first type involves a number of active actions on the part of the user, including working with system settings, but the second type is a separate topic.
In this case, if the problem is of this type, then the user has no choice but to wait until the deadline ends.
Irregularities may occur on both sides:
- from the provider (Internet service provider);
- from the side of the blocked site itself.
They are usually associated with technical work on the servers of the company of the same provider, or on the hosting servers where the site data is located.
The average user is not able to influence them.
And the most you can do is call the provider’s hotline, contact his office, or write an email to the owner, or simply the site administrator.
An example would be massive problems with overloaded sites, including online games that simultaneously consume large amounts of resources, as well as social networks that provide massive content.
If the problem is truly widespread, a call center representative or site administrator will certainly report it.
Thus, some companies, ahead of the curve, independently report possible DDOS attacks and the actions that the user needs to take to eliminate the consequences.
Advice! As for other reasons, it is possible and even necessary to fight to eliminate them, if you really need to use the data on the Internet page.
Blocked by Firewall
This wording sounds like a death sentence for some users. But there's nothing scary about it.
Essentially, a firewall is a kind of filter that prevents certain pages from being displayed.
And in most cases, it is he who prevents the user from viewing some content. When it is disabled, if this is the reason, access is restored.
To disable this component of the operating system, you must go to "Control Panel", accessed from the menu "Start".
When you switch it to list mode, it will not be difficult to find an element in it "Firewall".
Firewall
Having launched it, in the window that opens you should find the section "Enable and disable". Next you need to select the “Disabled” command using the hinge on the element "Community Networks".
At the same time, the system will issue a warning that the operating system will be at risk associated with the unauthorized activity of malicious software modules, simply viruses.
If, as a result, access is given to a private resource, the site can be added to the list and protection can be re-enabled by following the same steps.
Additionally, there is no need to save anything, since all parameters will be updated even without restarting the computer.
Blocking from Antivirus
If the result is satisfactory, you should check the settings of the default search engine.
In order not to delve into the program settings, you can completely remove it and install it again.
However, this method of solving the problem may deprive you of important user information, for example, previously saved passwords.
To do this you need to go to the menu "Settings" or "Options" depending on the site used. Find subsection "Story" and select a command in it "Clear/Delete cookies".
History tab
But this is not the only problem that may lie in the browser. For example, the cause of such messages may be a built-in ad blocker like .
A similar component is available in many browsers, including .
It provides undoubted benefits, but it may mistakenly perceive some sites as advertising.
To avoid this, you need to go to general settings and uncheck the line "Disable advertising".
Other connection problems
Despite the large number of reasons considered, there are still some problems that the user can also solve on their own.
An example would be resetting DNS settings. Errors caused by these settings can block access not to one or two sites, but to a whole list of Internet resources.
In this case, cleaning will help, saving access settings. To do this as quickly as possible, you should use command line mode.
You can run it two ways :
After a window with a black background appears on the screen, use the English keyboard layout to type ipconfig /flushdns.
As a result of a short procedure performed automatically, the memory will be cleared.
After this, you will need to close the console mode window and try again to open the blocked site.
Bottom line
As you can see, the technical information on the Connectionfailure error is quite extensive, and in order to be sure to find out the reason why this message is displayed on the screen, a lot of effort is required.
However, by consistently trying all the options, you can understand the exact reason why the connection to the server is blocked.
The connectionfailure error is caused by a failure to connect to a resource and does not at all indicate a lack of Internet connection. Frequent victims of the problem are social networks, which crash from time to time and display this error. Gamers also encounter a problem, since the client cannot contact the online server to download data.
Technical information: connectionfailure error
Now let's look at possible solutions to the problem, because usually there is no access to a specific site or series of pages. The conclusion here is simple that either your computer is blocking access to the site, or the site itself has a problem. This problem is also observed especially often on sites with an SSL protocol, this should be taken into account.
Causes and information - connectionfailure error:
- Access to the site is blocked by a firewall;
- Blocks firewall from antivirus;
- Blocking from the hosts file;
- Browser problem;
- Work on the server itself;
- Reset DNS settings;
- Problems with your ISP.
Each cause has a unique elimination method, and we will briefly consider all the presented options for comprehensive troubleshooting.
Firewall blocking
In this trick, the connectionfailure error is obvious, how to fix it is obvious, you just need to disable the firewall, which will lead to the removal of sanctions on the site. Just before taking this action, you need to make sure that you fully trust the resource, such as social networks.
To disable the firewall:
- Enter the word firewall into the search and go to the found element;
- Go to the “Enabling and disabling...” section;
- Check the "Disabled" box in the public network section.
Now check again to see if the problem has been fixed. Then you can enable it if you were able to log into the site, since upon startup the signatures will be updated and the error will be corrected.
Disabling antivirus
It is not necessary to completely disable the antivirus in general, you just need to find out if it is the problem. To do this, it is important to deactivate it temporarily and check that the problem is resolved. Then, when you turn it on, the filter will update and will no longer block the site you want. If this does not happen, you may have to disable your Internet firewall or add the site to the white list.
Parental control
A similar function is present in many antiviruses, special utilities, and even a standard Windows function. A super administrator can set certain restrictions on your use of both programs and the network, so that you will not be able to access a particular site. If this is your case, then connectionfailure is clear on how to fix it, just contact the administrator with a request to open access to certain resources.
Blocking from the hosts file
There is a common problem when a virus deliberately blocks certain resources or sets a redirect so that instead of the site you see advertising or in order to steal your data. There are often cases when the user himself installed filters and then simply forgot about them. You need to use an antivirus program and clean your computer so that traces of viruses do not spread throughout the system.
Now go to the path C:WindowsSystem32driversetc and make sure that the file is empty or contains the necessary settings, but the specified site is not blocked.
Browser problem
So we come to the question, how to fix connectionfailure in the browser. When the browser is the cause, this is good, since the problem can be easily fixed and you can easily verify that it is the cause. You just need to launch another browser and go to the resource of interest, and if the problem does not arise, then the reason is in the browser.
In order not to look for the problem directly in it for a long time, you just need to update or reinstall the browser, which will definitely lead to positive results.
Work on the server itself
Quite often, the reason is not your fault, it’s just that the resource is undergoing optimization work, updating, or something similar. Perhaps the site crashed due to a strong DDOS attack, as it could not cope with the load. When everything is fine and scheduled work is being carried out on the resource, you are redirected to the appropriate page with information about the launch of the site.
Everything that depends on you, you can simply write to support, for example: on a social network, mail or Skype. Further, nothing is required from you, unless the sappotras ask you to help them.
Resetting DNS Settings
Perhaps, as a result of cache clutter, you are experiencing some failures in connecting to certain servers. Here, either one site or all of them located in a certain country may be unavailable. The reset is simple:
- Press Win + R and enter cmd;
- Enter the command ipconfig /flushdns.
After execution, close the console and check the result of the action.
Problems with your ISP
A similar situation is also beyond your control. You can only contact your provider and find out if there are any sanctions against the site and whether the network is working properly. Also ask to reboot your switch, which may not work entirely correctly.
Additionally, use a program to clear cookies and cache, thus making sure that they have not crashed.
After completing the steps, you will be able to access the site, but do not rush to blame your computer or provider for everything; often the problem is in the resource itself. Be patient and the site administrators will launch it in a short time.
If you still have questions on the topic “How to fix the connectionfailure error?”, you can ask them in the comments
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