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What does the authentication error mean. Troubleshooting "An error has occurred in the application" problem on Android

Many Chinese-made Android users often have various kinds of errors. One of the most common is “An error has occurred in the Settings application”. This failure is not entirely standard, as in some cases it can block access to the device settings menu. Let's see how you can fix this problem.

Reasons for failure

Most often, the problem appears on smartphones and tablets, where there are still outdated OSs, frozen somewhere in versions 4.2.2, 4.4.2, 4.4.4. Versions 5.1 (and higher), 6.0 (and higher) are more stable in this regard. As such, there can be many reasons for a bug. Crookedly installed application, contains broken files and crashes. A global bug in the firmware, due to which you will not be able to start system processes and programs (camera, battery, calendar, phone book, etc.). We should also talk about viral activity on Android and the presence of garbage (residual files) in it.

Error in the "Settings" application on Android

Depending on the device model and OS version, the message may differ. For example, on Samsung and Sony it displays the message “Settings application has stopped”, while Chinese models may display “Unfortunately, Settings has stopped”.

Fixing the crash of Settings in Android

In any case, in order to resolve the bug, you need to perform a series of cleanups and reset some services on the system. Choose from the list of tips that best suits your situation. To begin with, you need to take simple steps, a kind of half-measures.

Before all actions, I recommend checking the device for viruses, use the latest versions of antiviruses (Dr.Web, AVG, Kaspersky, ESET, etc.). Also use the system cleaning tool - cache and junk files. In new versions of the OS, there is a built-in option for cleaning, or you can download a special software - Master Cleaner, for example.

Conclusion

These steps should help you resolve the Settings app error. As a last resort, if you cannot fix the bug at all, you will need flash device... Perhaps you are faced with a broken firmware that will fail constantly and need to be replaced. If there are nuances in your case, write about them in the comments, we will try to help.

When connecting to a WiFi network, an authentication error occurs - this is a very common problem. That is why it is so important to understand why it appears and how to eliminate it. But before moving on to network settings and troubleshooting, you should understand what authentication is. This will allow you to understand why this error appears and how to quickly and permanently fix it.

What is Authentication

It is a wireless security system that prevents outsiders from connecting to your group. Today there are several types of authentication. You can choose the most suitable option in the settings of the router or access point that is used to create a home network. As a rule, nowadays the encryption type (authentication) WPA-PSKWPA2-PSK2 mixed is used.

This is the most secure type of data encryption and is very difficult to break or bypass. However, it can also be divided into two types. For example, at home, a variant with one key phrase is used for all subscribers. The user himself installs the key, which is later required to connect to the network.

The second type of encryption is used in organizations that require an increased level of protection. In this case, each trusted subscriber is assigned a unique passphrase. That is, you can only enter the group from your computer and only after entering a unique key. In the overwhelming majority of cases, an authentication error when connecting to a WiFi network occurs precisely in the case of a mismatch between the encryption types and the entered passphrase.

Why WiFi Authentication Error Occurs: Video

Why Authentication Failures Appear and How to Fix It

As mentioned above, if, when connecting to a WiFi network, the system writes "Authentication error", then first of all it is worth checking the correct spelling of the key phrase, as well as whether Caps Lock is on. , then it can be checked in the router settings. But for this you have to connect to it with a cable.

Let's consider how to find out the password using the example of the D-LinkDir-615 router. After connecting to the device, open your favorite browser and write down the IP of the router in the address bar. You can find it out in the instructions or on the case of the device itself (carefully examine it from all sides).

How to easily find out the IP address of a WiFi router: Video

You can also find out the IP of the router using the command line. Press the key combination Windows + R, write CMD and press "Enter". In the window that appears, write the ipconfig command. Find the line "Default gateway" - this is the address we need.

Write it in the address bar of your browser and press "Enter". Then the system will ask you to enter your username and password. We write admin, admin respectively.

Now at the bottom of the screen, find and click the "Advanced Settings" button. Several additional windows will appear. We are interested in the section called "WiFi". In it you need to find the security settings. This is where you can select the type of authentication (encryption) and change the password.

Connecting to a WiFi router in Windows 8: Video

Sometimes the authentication problem when connecting the computer to WiFi appears even with the correct key entered. This may mean that the router crashed or it just hung up. This is eliminated by simply rebooting the device. This can be done in the settings or by simply turning off the power for 7-10 minutes.

You should also check the channel on which the router is running. To do this, go back to the start menu. In the WiFi section, click "Basic Settings" and find the "Channel" line. It is recommended to set the value "Automatic".

There are also cases when such an error appears not due to a malfunction in the router and not due to an incorrectly entered key. In this case, check the settings in the operating system.

OS check on authentication failure

To connect to a wireless network, the computer uses a Wi-Fi adapter. It is because of its malfunction that WiFi network authentication problems may appear. First of all, you should check the presence and correct operation of the drivers. This is done in the device manager, which can be started as follows. Find the shortcut "My Computer" and click on it with the right mouse button.

Select "Properties" and open "Device Manager". You can also simultaneously press two keys - Windows + R, in the window that appears, write mmc devmgmt.msc and press "Enter". In the window that appears, we are interested in "Network adapters". Open the branch and see if your WiFi module is on the list. As a rule, it has a Wireless Network Adapter in its name. If the device is marked with an exclamation mark, then the drivers are not working correctly.

If an error occurs in the Google Play Services app, you can fix it by resetting the cache, re-adding your Google profile, or reinstalling updates. These are general troubleshooting methods, but other methods may be needed depending on the error number.

Bug fix

So, an error has occurred in the Google Play Services application, let's see how to fix it and return Android to a normal, working state.

Reboot your device. This commonplace recommendation helps you fix some system glitches without the hassle.
Make sure that the mobile traffic has not ended, the Wi-Fi connection is stable, and there are no connection problems.
Launch the Play Market, find the "Google Services" application, open its page and click "Update". The firmware is updated to the latest version.

If these measures did not help fix the crash, then you will have to crawl a little in the phone's settings and work with the cache and application updates, as well as the Google profile.

Reset cache

The cache stores data for quick application launch. Sometimes, along with the "correct" data, there may be incorrect information that will interfere with the launch, causing an error. We fix this flaw:

Go to settings, open the section "Applications"
Go to the All tab, look for Google Services.
Open the program page, click "Stop", then - "Clear cache".
Repeat the operation for the Google Services Framework application.

After clearing the cache of these two programs, reboot and verify that you have resolved the problem that was preventing you from using your mobile device normally.

Re-adding a profile

If nothing changes after clearing your cache, try adding your Google Account again.

Open the settings and find the "Accounts" field (or the "Accounts" section).
Find the Google profile you are using, open its sync settings.
Call the additional menu and select "Delete".

After deleting the account, restart the device, open the settings and in the "Accounts" field, click "Add". Select your Google account and enter your email and password from your existing profile, or create a new account.

Reinstalling updates

Another way to fix the error is to uninstall the Service updates and then reinstall them. The Uninstall Updates button is grayed out by default, but it's easy to fix:

Open the "Security" section.
Go to the "Device Administrators" submenu.
Uncheck the box next to Remote Control.
Confirm the deactivation of the function by clicking "Disable".

After disabling the "Administrator", you can go to the "Applications" section, open additional settings of the Services and delete updates. Be sure to reboot to save your changes.

To reinstall the updates, launch any built-in application. It will not open immediately, but will prompt you to install updates to Google Services first. Accept the installation and wait for the procedure to complete.

Reset

If the above methods do not solve the problem, use extreme measures - reset the settings.

Open the "Recovery and reset" section.
Select "Factory data reset". Not network, but all Android settings.

Note that on Android, a factory reset also deletes user data from the device's internal storage. Therefore, in order not to lose important information, make a backup copy before resetting the settings.

Correction of errors by numbers

Almost all Android errors have a sequential number, with which you can find out why the problem occurred and what to do to fix it. As a rule, to fix errors in the Google Play Service, it is enough to apply one of the above methods, but sometimes you have to look for other ways to solve the problem.

Error 24

A failure with this number occurs when the application is reinstalled, when its data is superimposed on the information about the previously installed application. To fix this problem, you need Root rights and the Root Explorer program, through which you can go to the sdcard / android / data directory and delete unnecessary application files.

Error 101

Message number 101 appears because there is not enough space on the device. To fix the problem, clear the memory, delete the cache of the Play Store programs and Google Play Services. Clearing the cache in Services also fixes errors with numbers 413, 491, 492, 495, 504, 911, 919, 920, 921, 923, 941-942.

In some cases, to clear the cache, you need to add reinstalling your Google account, turning off and on Wi-Fi, removing updates to the Google Service and Play Market, resetting the settings.

Owners of mobile gadgets, when trying to use a connection to wireless networks based on Wi-Fi, sometimes face the problem that the device, for some unknown reason, writes: "An authentication error has occurred." Also, sometimes messages about the message “Obtaining an IP address” are constantly “hanging” on the screen, etc. How to fix such problems will be shown below. Looking ahead, it is worth saying that mobile devices are not always directly related to the appearance of such troubles, and the root cause lies in the incorrectly set parameters of the routers. Next, we'll look at troubleshooting for home users, not open networks that might be available in, say, cafes, restaurants, or airports.

An authentication error has occurred: how to understand this?

In general, the appearance of such a message indicates that when connecting to a wireless network, it was impossible to control (compare) the access key entered by the user with the one set for the network on the router. But this is far from the main reason.

The message that an authentication error has occurred, Samsung devices or some other devices may also be issued due to the fact that the encoding (encryption) systems of information may also not match. As you know, this technique is used to prevent attackers from gaining access to transmitted and received information in order to use it in their own interests.

Finally, the most trivial situation of a failure with notifying the user that an authentication error occurred during connection may be associated with a weak signal (the capabilities of routers are limited mainly by the range of about 100-300 meters in line of sight).

Based on the foregoing, we will take appropriate measures, but with reference only to home conditions.

What if the WiFi authentication failed in the first place?

So, the very first thing that is usually recommended to do in such situations is to perform a complete reboot of all devices used, at least somehow connected to the network (routers, phones and tablets). If the signal is weak, just move closer to the router and check the connection.

Entering the correct password and changing it on the router

Quite often, a message appears that a WiFi authentication error has occurred, Samsung devices or any others can be issued due to the usual carelessness of the user who entered an incorrect password to access the network.

In this case, it is recommended to check the combination installed on the router and change it if necessary. To do this, log into the router interface using any web browser installed in the Windows system and go to the security password or encryption key line. After viewing, enter the correct combination on your mobile device.

If you need to change the password, first do it on the router and save the changes, and then enter the changed password on your phone or tablet to connect to the network.

Note: you can find out the address of the router on the plate on the back of the device.

To view the password on a mobile device, use the connection settings, long-press on the Wi-Fi line, go to the settings, select change the network and tick the box to show the password.

Changing the encryption standard

If the mobile device reports again that an authentication error has occurred, compare the encryption types installed on the router and the mobile device.

In the parameters of the router, refer to the corresponding line and set the authentication type to WPA-PSK / WPA2-PSK (Personal), and use the AES parameter for encryption. After that, on the mobile device, use a long press on the connection name, and then select the network deletion in the parameters. After identifying the available networks, find your connection and try to re-establish the connection.

Selecting a Wi-Fi channel

If after that a notification is displayed that an authentication error has occurred, you will have to move on to more drastic settings that are made exclusively on the router.

Log into the web interface of the router, as shown above, and go to the wireless network settings section (if the interface is not Russian, usually this is the Wireless menu). First, make sure that the region is set correctly, then from the drop-down list in the channel line (Chanel), one by one select one of the eleven present. Perhaps on one of them the connection will return to normal.

Change Wi-Fi mode

Finally, if this does not help, and the message that an authentication error has occurred appears again, pay attention to the Wi-Fi mode set.

To solve the problem, in the Mode selection line, set the mixed type 11b / g or 11b / g / n with the maximum data transfer rate, for example, 300 Mbps.

What if all else fails?

Now let's see what can be done if none of the proposed solutions had a positive effect. In most cases, it all comes down to doing a full factory reset.

First, perform these actions on the router using the appropriate section. After the reset, use the information you received from your ISP and re-configure the wireless connection.

Then, in the wireless connection settings on your mobile device, delete the connection you are using with confirmation of the "Forget this network" item. Reboot your device and reconnect. If this does not work either, reset the settings to the factory state on this device as well. But in most cases, such actions on a mobile device are not required. If, nevertheless, this is the problem, remember that personal data will be destroyed along with the rest of the information, so take care of creating a backup copy in advance, saving it on a removable memory card or on a computer (for a PC, you can use even the simplest utilities like MyPhoneExplorer ).

Instead of a total

These are the main causes and remedies for these kinds of failures. If a similar situation occurs when you try to access open networks outside your home, there is nothing left to do but contact the network administrator. At the very least, you will definitely be given the correct login password. Sometimes, however, it also happens that when you visit the same institution, these network accesses on the mobile gadget are automatically saved. If something doesn't work, the same security key may have been changed. Delete the existing connection, reconnect and enter a new password (or use changing the password for an existing connection, as shown in the above material).

It remains to add that most often the router settings do not need to be changed (only in the most extreme cases), since most of the root cause of such a problem is the banal carelessness of the owner of the phone or tablet, who is trying to enter incorrect data. But with Samsung equipment, the problem can really be observed, since some devices use a different type of encryption by default, which is why there is a mismatch.

Perhaps the most common problem that occurs on an android phone or tablet is an authentication error when connecting to a home wi-fi. In order to eliminate it, you need to understand the basic principles of the device, as well as know what authentication is and why it is not performed.

What is Authentication

You cannot fix the problem without understanding its essence. Wi-Fi Authentication is the process of verifying the security key. In simple words - the coincidence of the set network password with the one entered by the user. The main task of authenticating on a phone or tablet is to protect the network from unauthorized access.

Not every user understands that any devices connected to a single Wi-Fi network can freely exchange data. That is why open Internet connection points are considered insecure. To connect to a wireless network without fear for the safety of your data, an authentication process was invented. The most common way to authenticate a user is to ask him for a password.

How is authentication done?

The user connects to the network, then enters the security key;
an android-based tablet or phone encrypts the entered information and sends it to the router;
the router decrypts the data;
denies or allows the user to connect depending on their compliance or non-compliance.

That is why, if you enter the password incorrectly, an error occurs. In this case, the android device writes that you failed to pass the authentication process, and the phone or tablet does not connect to the Internet.

Steps for connecting to wireless internet

Please make sure the wifi module on your android phone or tablet is turned on before connecting to a wireless network. For this:

go to phone settings;
go to the wireless networks menu;
if the phone or tablet tells you “to see the available networks, turn on wifi”, then move the slider from the top to the right position.

After a few seconds, a list of available wireless networks will appear here. If you see a "lock" next to the wifi icon, then in order to connect, you will need to go through the authentication process.

enable the "show password" function

Decide which wireless network you want to connect your mobile phone or tablet to. Click on it. After that, a dialog box will appear on the display of your device with its name, information about the signal level, type of protection and a field for entering a password (if it is protected). In order not to make a mistake in entering it, scroll down the dialog box and put a tick in the "show password" box.

This will show you exactly which characters you are entering. After entering the appropriate password combination, click the "connect" button. The phone or tablet will inform you that it has successfully connected to the selected wifi network or an error will appear.

Main problems

It often happens that when you enter the wrong password and try to connect to a wireless network, a phone or tablet under its name, instead of the message "connected", writes: "Saved, protected by WPA2" (WPA2 is the type of network used, so it can change). This is followed by several attempts to authenticate and in the end the message "authentication error" or "error connecting to the network" appears (which is basically the same thing). In such a situation, the user has basic questions: what to do and why does the error appear?

There are three common problems that prevent an android phone or tablet user from going through the authentication process:

incorrectly typed password for connecting to wifi (security key);
mismatch between the encryption type of the router data and the settings on the phone or tablet;
malfunction of the wifi router.

Depending on the type of problem, the ways to solve it differ.

Incorrectly typed password

Click on the name of the wireless network that is giving an authentication error. After calling up a small dialog box, select the "delete" item. Do not worry, it will not disappear anywhere, but will reappear in this list after which you can repeat the operations performed by entering the correct password. Do not forget to check the box "show password". Double-check the key carefully. Users often confuse the character zero with the letter "o", the one with the Latin "i" and "l", the capital letter "I" (i - "ah") and the small "l" (L - "el"), and so on. Remember that the password can be case sensitive (uppercase and lowercase).

If you are sure that the entered password is correct, but the phone or tablet on the android operating system still gives this error, turn off the wi-fi module and turn it on by trying to connect to this network again, or completely reboot the mobile device and try to connect again.

Faulty router

Also, the problem may lie in the router itself, which distributes the Internet. In this case, you can try to connect to other wireless networks, other routers. For example, to free Wi-Fi restaurants, shops, etc. If the problem persists, then most likely you will have to do a full reset of your smartphone to factory settings. At the same time, do not forget to make a backup copy of the information stored on your android phone or tablet, otherwise you will lose it.

Data encryption type mismatch

The error may appear due to a mismatch in the type of data encryption or an unknown wifi network mode for the device. The problem is eliminated by changing their types. To do this, you need to connect to the router (via Wi-Fi or using a cable) and enter the router parameters. Enter the IP access point in the address bar of the browser (this information can be found on the case, box or in the instructions for the router).

How to find out the IP access points through the Network and Sharing Center

- open the "Network and Sharing Center";

- find the line "connection" and select "wireless network connection";

- in the dialog box that opens, click on the "information" button;

- The "default gateway IP v4" is the IP of the access point to the router.

Changing the encryption type in the router settings

After entering the IP access point in the browser, you will be taken to the router parameters, where you will need to enter your login and password (by default: admin, admin). Depending on the manufacturer and model, the program interface may differ.