The tablet does not pass Wi-Fi authentication. When connecting to the Internet, an authentication error appears. WiFi Authentication Error: Your Android tablet or phone cannot connect to the network. So, wifi authentication: what is it?

In the 21st century, few people can imagine their life without the Internet. People are very accustomed to such luxury, and when any problems with the connection appear, they almost begin to panic.

In this article, we will discuss one of the quite common problems called “Wi-Fi Authentication Error” or Wi-Fi Connection Error on Android. Surely every user of an Android smartphone or tablet has encountered this. And now we will figure out how to get rid of this problem in various ways.

Reboot your device

One of the simplest and most commonplace methods is to reboot your smartphone. A reboot usually fixes minor system glitches, so maybe it will help you.

Enter the correct password

Consider the option when a connection error occurs exactly when you first connect to a specific Wi-Fi. Most often, the error appears when you enter the password incorrectly. To enter the correct password, click on the network you need and hold your finger on it until a window appears with two inscriptions: delete network, change network. Select “Change network” and enter the correct password.

Please note that, for example, the characters “y” and “Y” are different characters. If the password consists of capital and small letters, then the password must be entered exactly, and not everything in small or capital letters.

Reconnect

If entering the password does not bring any results, try deleting the network and then connecting again. To do this, hold your finger on the network you need, and in the window that appears, click “Delete network”. Then turn Wi-Fi off and on and try connecting again.

Reboot the router

If the above options did not help, then the problem is not with the smartphone, but with the router.

First, try rebooting your router. To do this, you need to turn it off for 10 seconds and then turn it on again.

You can also try removing the password for a while. Let's look at how to do this using the example of a TP-Link router.

Open the browser and enter 192.168.0.1 or 192.168.1.1 in the address bar. The router menu will open.

If a window appears with the words “login” and “password”, enter the standard login - admin, password -admin.

Then go to the “Wireless Mode” tab, and below click on “Wireless Protection”.

At this point, select “Disable protection” and try to connect. The smartphone should connect immediately without entering a password.

If this doesn't help, check if your DHCP server is enabled. To do this, go to the DHCP section:

If the DHCP server is disabled, then you need to enable it, and that was the connection problem.

Other reasons

There are also small, but quite significant reasons why a Wi-Fi connection error occurs. For example, you are too far from the access point, and your phone sees this network, but cannot connect, and writes “Saved, protection.”

In general, this problem can be solved either by rebooting the router or rebooting the device. But there is a moment when you are not at home and are trying to connect to Wi-Fi somewhere in a cafe. Then there is a chance that the router is configured in such a way that you cannot connect to it.

Sometimes serious problems happen. For example, mechanical damage to the module. Then you have no choice but to take your smartphone to a service center.

You can also try updating the drivers for your router. Enter the exact model of your router into the search engine, download the drivers and install them. As a rule, drivers for your model can be found on the manufacturer's official website.

Conclusion

An authentication error occurs due to a malfunction of the smartphone or router. We have told you methods to fix this problem, which will not affect the operation of your phone or router in the future. Therefore, you can safely use these methods.

If none of these methods help, then it is a hardware problem. But to find out what exactly (phone or router), take another smartphone and try connecting from two phones, first to your Wi-Fi, then to the other. In this way you can understand which device is faulty. And in this case, you will have two options: either take the phone for repair or buy a new router.

More articles on the topic of the Guide.

Android is an excellent mobile platform that provides users with many options. However, this OS is not without its shortcomings. Many Android users often experience various problems. One of the most common problems is an authentication error when connecting to WiFi on Android. What to do if you encounter this problem? How to fix the error? You will find the answer to this burning question in this article.

You enter the password for an available WiFi network from your device, after which the device goes into “Authentication” mode. After a short period of time, the system displays the message: “Authentication Error” or “Authentication Error”, and then the phone displays the network status as “Saved”. At the same time, there is still no Internet on the tablet or smartphone. This happens over and over again. Is the situation described familiar to you? Then you've come to the right place.

Authentication (authorization) is the process of verifying authenticity. That is, the router checks whether the password entered by the user matches the key that is stored in the database. If everything is in order and the code matches, then the user is granted access to the Internet. If an authentication error occurs, it means that the key was entered incorrectly.

In order to fix the problem, you need to find its source. The reasons why the phone does not connect and reports an error may be different. Typically, this problem occurs when the user has entered the password incorrectly. In addition, a similar problem can occur due to incorrect security settings in the router.

What to do?

Authentication error when connecting to WiFi on Android can be resolved in several ways. They must be used one by one in the order in which they are indicated in the article.

Incorrect password

Since an authentication error usually occurs due to an incorrect key, the password must be checked first. From your mobile device, go to the “Settings” menu. There, select "Connections" and go to the section called "Wi-Fi". Select the network you can't connect to and press and hold it for a couple of seconds. A tab will appear in which there is an item “Delete this network” or “Forget network”. Click on it.

Now try connecting to the wireless network again. Make sure you specify the key correctly. To check the correctness of the cipher, check the “Show password” checkbox. The information will not be replaced with dots, so you can view the key in the router settings and compare it with the entered password.

Security Settings

If you are sure that the entered data is correct, but you were still unable to connect to the network, this means that the root of the problem lies in the security settings of the router. To make changes, go to the router menu. To do this you need:

1. Get the IP address of the device (written on the router body).
2. Enter the IP in the search bar and press the Enter button.
3. Log in to the router settings menu using the word admin as your login and password.
4. After this, you will have access to the router settings.

Pay attention to the authentication method and WPA encryption type. The WPA2 parameters must be set to Personal and AES respectively. If you have other values, then change them.

The set parameters must be permanently saved. After changes, turn it off and on again. Don’t forget to delete the network on your Android device every time (how to do this was discussed above).

What to do if nothing helps?

If, after carrying out the above procedures, WiFi still does not appear on your phone, try the following:

• Change the password on your router. Set the key to exactly 8 characters long and use only numbers when composing it. Sometimes it helps.
• Experiment with your router settings. They are located in the router control panel. Try changing the channel, region, channel width and other parameters.
• Try rebooting your device. Then turn Airplane Mode on and off on your device.
• An authorization error may occur due to a weak connection. Then the solution to the problem with connecting your phone is elementary - you need to get closer to the router.

Conclusion

Authentication error is a fairly common problem that almost all users of Android devices have encountered. However, not every user knows how to fix this problem. If you experience this error, then use the tips in this article one by one. Eventually, the problem will be resolved and you will be able to access the router.

Today you can access the Internet from your phone not only using the 3G network, using a radio module. An increasing number of devices are equipped with a Wi-Fi module. It allows you to connect at a higher speed, allowing you to watch videos and listen to music in real time.

Connecting to Wi-Fi using an Android phone is quite easy.

Photo: connecting to Wi-Fi using an Android phone

But it often happens that when connecting to Wi-Fi, Android displays an error message. Most often this message looks like this:

If this message occurs, there are several ways to resolve the problem.

The term "Authentication Error"

To understand the reasons for this error, you first need to understand what a Wi-Fi authentication error is.

At its core, authentication is a procedure for verifying the authenticity of the entered password or combination of login or password.

To connect a device such as a smartphone or tablet, you usually just need to enter the correct password, and the problem will solve itself. There are also situations when such an error may appear for some other reason.

Video: Setting up wi-fi on an Android phone

Basic mistakes

Most often, the cause of an error when connecting your phone to Wi-Fi is an incorrectly entered password. It is very important to enter your password on your Android device in the correct case and language. Since many people confuse the English “C” with the Russian letter “S”. They have the same spelling, but their code designation is completely different. This often causes connection errors.

Quite often the error occurs for another reason, which means the password is correct. The tablet or smartphone simply cannot negotiate with the router due to a conflict in the security settings (security type, encryption).

Solving the problem with connecting your phone to Wi-Fi

What to do if an authentication error occurs on your Android phone? The way to resolve the problem of connecting your phone to the Internet via Wi-Fi depends on the reason that causes the authentication error.

First of all, it is important to simply check the router settings.

You can do this as follows:

You can also set up an Internet connection without a password on Android. This can also be done in the router settings via the WEB interface; simply leave the “Password” field empty.

After the slightest changes are made to the router settings, the old connection on a device running the Android operating system

must be deleted to avoid various conflicts. To do this, you just need to press your finger on the connection and hold it for a few moments.

If the above methods did not help, you just need to reboot the router.

Rebooting the router

One way to solve the authentication problem is to reboot the router. This can be done either manually, using the “Power” button, or using the WEB interface. To do this, you just need to go to any Internet browser that is installed on your personal computer

Enter the correct password

Often, to connect to a Wi-Fi router, it is enough to enter the correct password. This is done as follows (on Android version 4.0 and higher):

If all operations were performed correctly and the correct password was entered, then there should be no problems with authentication. And you can access the Internet without any difficulty.

Security and encryption method

Security in Wi-Fi networks is ensured by specialized encryption systems developed by the IEEE.

There are several types of encryption algorithms:

• AES/CCMP;
• CKIP;
• TKIP;
• WPA2.

The last three types are most often used to encrypt channels with data transmitted via Wi-Fi technology.

WEP technology was created a relatively long time ago; it is one of the most unreliable. Connecting to a channel protected by it is not difficult even for inexperienced users who do not know the password.

The operating principle of this encryption system is approximately as follows.

In 2004, a new encryption system was created, which is still used today - WPA/WPA2 (WPA2 - modified). Because it is extremely reliable.

b/g/n modes and wireless network channels

There are several modes in which the Wi-Fi network operates. Each has a different information transfer speed, as well as coverage area.

Letter designations carry the following information:

n – the fastest mode (maximum available speed – 600 Mbit/s);
g – medium-speed mode (maximum available speed – 54 Mbit/s);
b – the slowest mode (transmission speed is only 11 Mbit/s).

It often happens that to normalize operation it is enough to simply switch the operating mode of the Wi-Fi router. Since some devices do not support n mode, in which your router may operate. For example, the iPhone 3GS supports working with a Wi-Fi router only in b and g modes. Thus, the inability to connect to the router may be due to incompatibility of operating modes.

Before connecting your phone to the router, check the device specifications. Perhaps they are simply incompatible.

I can't connect to Wi-Fi from my phone. Writes - authentication error

If, when you try to connect your phone to a Wi-Fi router, you see a message “authentication error,” then there may be several reasons for this.

• The most common is that the password was entered incorrectly on the phone. Perhaps the error lies in the register. Either the password was changed without your knowledge;
• The router is operating in a mode that is not supported by the phone. In this case, there are two options: switch the router to an alternative, lower speed mode, or simply purchase another phone;
• any changes were made to the Wi-Fi router settings, after which a reboot was not carried out via the WEB interface or using the “Power” button.

Router settings for connecting a phone

To connect your phone to a Wi-Fi router, you must configure the router according to the instructions. It is only important to pay special attention to the choice of operating mode. Since not all smartphones today support operation with mode n (600 Mbit/s).

When setting up a TP-Link router, this mode can be found through the WEB interface, in the field called “Mode”.

Establishing a Wi-Fi connection on Android

Connecting a cell phone running Android is usually not difficult. But some models require turning off the 3G module to avoid interference.

The connection is made as follows:

What to do if Wi-Fi authentication fails on Android? First of all, you need to check that the password is entered correctly. If this doesn't help, you need to dig a little deeper. Most often, the solution to the problem lies on the surface; fixing it is quite simple.

Wired communications are becoming a thing of the past, so the topic of setting up devices to access the Internet via a Wi-Fi interface is becoming increasingly relevant. Every year the data transfer speed becomes faster, and errors occur less frequently.

After purchasing a tablet, one of the first actions of the user is to connect it to a WI-FI wireless network and configure it. This is done in order to further be able to install the necessary programs on the device. However, sometimes, while setting up a wireless connection, the tablet displays a system message about a WI-FI authentication error or other similar messages that are not very clear to a novice user. This, in fact, is where the connection to wireless Internet access ends. Next, we will try to understand the WI-FI network settings and the difficulties encountered in this process.

Let's discuss the option of connecting a tablet based on Android OS. On all other operating systems the meaning will be similar, although the menu items may be located in different places. In the usual version, if everything goes well, the connection process is quite simple - you need to go to “Settings” of Android, in the “Wireless Networks” section, select “WI-FI”, turn it on (if this has not been done previously). Next, in the list of networks available for connection, select the one you need and in the window that opens, enter a unique password (if one is set). After this everything should work.

If the list of available networks does not include the user's network, then you need to update this list. This can be done by clicking on the update button located in the upper right corner. After selecting and entering a password, Android will remember the network and the next time you connect there will no longer be a need to do all of the above. After a successful connection, a characteristic sign will appear near the notification line (in different Android firmware they are at the top or bottom), which also shows the level and strength of the signal.

If you couldn’t connect to your home router and the Internet still doesn’t work on your tablet, it makes sense to first check it on your laptop or computer. There may be a problem with the wireless network itself or with the router and its settings.

Why may the tablet not connect to a working WI-FI network?

Sometimes the error that “pops up” for users at the moment of connection is a message that this network is protected by a WPA\WPA2 password. In this case, you need to enter the appropriate password suitable for this network.

It also happens that the network was selected correctly and the password was entered correctly, the tablet remembered it, but the connection never happened. There is also no error message. It is quite possible that the whole issue is in the settings of the router itself. To do this, you need to enter, using another, already connected device, into the router settings using the web interface, select the “Wireless network” item, and find the “Channels” item in it. By clicking on it, set the value to “Auto” in the window that appears. Often this problem can arise for those who just bought a WI-FI (router) and made mistakes in the settings of the latter. If this does not help, then we will analyze the basic scheme for checking the WI-FI (router) settings.

To do this you need:

1. restart the router;
2. Make sure you entered the password correctly again;
3. check that the “Channels” item is set to “Auto”;
4. check the type of security and encryption;
5. In the security settings, change the old password to a new one.

If you don’t have confidence in your abilities, then it’s better to leave it as is, and use this list of tips if the others don’t help.

Also, the main reason for authentication is an incorrectly or incorrectly entered password. The situation is that after the password has been entered and remembered on the tablet, all other connections occur with the same incorrect password.

This problem can be corrected by the following steps:

• On Android, go to “Wireless Networks”, select the desired network and delete it.
• After that, click the “Update network list” button and re-enter the already verified or updated password.
• If the password is entered correctly, it will be saved again and the Internet should work without problems.

Other connection error options

If the tablet does not connect to one specific network, but it is, for example, on a home computer using wireless WI-FI, you need to go back to the router settings. Next, select “Wireless Network”, and then enter the “Modes” section. Here change alternately to the values: b/g/n. After each mode change, you should reboot the router and reconnect on the tablet.

If after all it turns out that the problem is not in the tablet, but in the signal itself provided by the provider, then you need to contact your Internet service provider to eliminate this problem.