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Wifi has disappeared on the tablet, what should I do? Checking the encryption type

Often, users do not have problems connecting their tablet to Wi-Fi: they need to visit the appropriate section in the menu, select an access point, and then enter personal data. However, it happens that the tablet does not connect to Wi-Fi, and then there is cause for concern. There may be several reasons for this phenomenon. Below we will consider each problem problem and solutions separately.

Important to know! In most cases, the reason for the lack of connection to the Internet lies in the settings of the router or the gadget itself. Much less often, connection problems arise due to a non-functional built-in module.

Time and date settings are incorrect

Incorrect time and date settings often cause problems with Internet connections for owners of various devices. So, what to do in this case? First, look for opportunities to solve the problem:

  1. First, visit the settings section of your personal gadget
  2. Now you need to go to the “Date and time” item
  3. Configure the correct settings
  4. Connect to a Wi-Fi network

If the Wi-Fi network appears, the tablet works - the problem is solved. But what if the device still doesn't work? Continue reading the instructions below.

Password difficulties

It happens that the tablet does not connect to the Wi-Fi network due to the user’s carelessness: he can change the old password with a new one, but forget to indicate the changes in the gadget’s settings. In this case, the device will connect to the World Wide Web using the former password. Is it worth explaining that such intentions of an electronic device will not be successful?

To get rid of the complexity, you will need Wi-Fi settings, and then deleting the old profile. Reconnect the gadget.

Software glitch

The software may also experience glitches and malfunctions, which can also cause the tablet to not see the Wi-Fi network. You can eliminate such a nuisance using a useful utility - Wi-Fi Fixer. In order to take advantage of the program's capabilities, download it to your tablet, then install and launch the application.

The main page is where information regarding connection status is located. The Known item provides information regarding access points ever used to connect a specific device.

Now you will need to reboot your device.

Incorrect device settings

There are other reasons why the tablet does not see Wi-Fi, one of which is the failure of some settings. To forget about this problem, you will need to make a radical decision and reset the settings. This path represents the most radical, most effective option for solving a complex problem.

Important to know! Before you reset your tablet, you should back up your important information because it will all be deleted later.

You are required to visit the settings, where you select the “Backup and Reset” tab

The next item that should interest you is “Reset settings”

Now try to find out as much system information as possible that appears on the tablet screen. Confirm the decision and try to connect to the Internet again.

Virus programs

This is another reason why the tablet cannot connect to the Internet. Why is this happening? Many users of Android OS devices tend to think that their gadgets are protected from viruses and malware, but this opinion is incorrect. Of course, it is unlikely that the cause of your discomfort will be a large malware program, but small pests that interfere with the correct operation of the device are not excluded.

In order for your tablet (Lenovo or another brand) to connect to the network, you need to download and install a special application for devices running on the Android operating system - an antivirus. There is nothing complicated or time-consuming about using an antivirus program: launch the application, scan your device for virus software. If you find suspicious files, follow the instructions that appear on the screen.

Router settings

If your tablet stops connecting to the Internet, a possible cause of the problem may be a problem with the device connecting to Wi-Fi. The tablet does not search for Wi-Fi? The router settings may be incorrect. In this case, there is a sequence of actions:

  1. Device settings are the area that interests us first. Connect to the equipment wirelessly or using a cable. Find tips on the procedure in the instructions included with your specific router model. Often it is enough to enter 192.168.0.1 in the address bar
  2. Now go to the “Wireless Mode Settings” item, where you will need some changes: “Mode” - “11bgn mixed”, “Channel” - “Auto”. Next is “MAC Address Filtering”, select “Disabled”

Most likely, by following the instructions above, you will be able to get rid of the reason why your device does not connect to the Internet. If the gadget still cannot connect to the Internet, we recommend contacting a service center to diagnose the problem and possible repairs.

After purchasing a tablet, you will most likely want to use wireless connectivity. Often, users find themselves in a situation where the device does not see the network or displays a number of errors when connecting. In this article we will look at the most common problems that arise when accessing the Internet and ways to solve them.

Why doesn't my tablet connect to the wireless network?

1. Entering the wrong password

The most common reason for wireless Internet failure on a tablet. Most often it occurs if the user has changed the password, but the Android device has never connected to it. Enter a new password and check if your device connects to the Internet.

2. Viruses

Sometimes the reason why your device won't connect to the Internet can be due to malware. To fix this problem, you need to scan the gadget with an antivirus.

3. Power failure

Inexpensive routers are characterized by unstable operation. Voltage surges can lead to the tablet not seeing the network. To solve the problem, reboot the router by disconnecting it from power for 2-3 minutes. Then turn it on again. Sometimes a reboot needs to be done several times.

4. Wrong encryption type

To check the encryption type, go to the router settings. To do this, enter the router's IP address in the address bar of your browser. This data can be found on the device sticker or in the instructions. In the tab that opens, select “Advanced settings”. Then, under Wi-Fi, click Security Settings. To view the encryption type, go to the “Network Authentication” menu. From the proposed options, select WPA-PSK\WPA2-PSK2 mixed. Reboot your router. 5. Time and date settings are incorrect

In some cases, the tablet does not connect to the wireless network due to incorrect date and time values. After correcting these parameters to the correct ones, network operation will resume.

6. Checking the MAC filter mode

Another reason why a user on a tablet does not see Wi-Fi may be changes in MAC address filtering settings. To exclude this option in the router settings in the “Wi-Fi” section, go to the “MAC filter” item. Check which mode is selected. The following values ​​are possible:

  • Disabled – by default, there is no restriction for MAC addresses.
  • Allow – access to the wireless network is allowed only to those devices whose MAC addresses are registered on the corresponding tab. Other devices are not allowed to access the Internet.

Deny – there is a list of MAC addresses that are restricted from accessing the Internet. If the router sees a prohibited MAC address, it closes the Wi-Fi connection for this device.
If the “Allow” or “Deny” modes are selected in the router settings, check whether the MAC address of your device has access to the wireless network. Or change the mode to Disabled. After these manipulations, check how the gadget connects to the network.

7. Channel diagnostics

If the tablet sees the network but does not connect to it, check the channel matches. This problem occurs when the signals of two routers operating on the same channel intersect. There is interference that prevents access to the wireless network.

Check on your tablet to see if there are other wireless networks nearby. If your neighbors have Wi-Fi, then perhaps your routers operate on the same frequency.

To change the channel in the router settings, go to the “Wi-Fi” section to the “Basic settings” tab. Find the “Channel” line, try choosing a different value.

Reboot your router.
If the channel is set to “Auto” mode in the settings, the router itself will search for an available free channel and use it. Therefore, in most cases it is recommended to use this mode.
8. Changing Wi-Fi version

The reason why the tablet does not see the wireless network may be that it does not support the wireless version that is installed in the router settings. On the “Wi-Fi” tab, go to “Basic Settings”. In the “Wireless mode” line, enter 802.11b\g\mixed. In this mode, the router provides Internet access for all types of devices.

A tablet is usually purchased in order to be constantly connected to the Internet. Connecting to the Internet via 3G is one of the most advanced technologies today, while 4G networks have not yet become widespread. This connection allows you to obtain a speed sufficient for work and, unlike Wi-Fi, works almost everywhere where there is coverage from mobile operators.

Setting up the 3G module

How to set up 3G on a tablet if such a module is already included in the tablet computer? To do this, you need to insert a microSIM card from one of the cellular operators into the tablet.

At the same time, the 3G adapter on the tablet must be compatible with domestic operators. After turning on the tablet, the connection should work immediately. You may need to go to “settings>mobile network settings>account” to configure the connection by entering the APN username, your username and password (the names may differ for different models). Data for setting up different operators can be found on the Internet.

Example for setting up a connection on an iPad:

1) Go to settings and click “cellular data”

2) Click on “APN settings”

3) In the APN section, enter the required data. In this case, the name and password fields can be left blank

After this, the settings are completed.

Connecting a 3G modem

How to set up 3G on a tablet without a 3G module? To do this, you need to purchase a USB modem to connect to the 3G network. You just need to select a modem model compatible with your tablet. It is also necessary for the tablet to support USB modems, but this depends on the firmware and not all devices yet have this support. And through the hyperterminal (the program is HyperTerminal, available on the Internet) you need to remove CD-image support from the modem and switch it to “modem only” mode. Install HyperTerminal on a desktop computer (in Windows XP it may already be pre-installed and located in the “Standard>Communications” section) and connect the modem for configuration. First, through the software installed from the modem, remove the PIN code check in the settings. Then, through HyperTerminal, switch to “modem only” mode.

Then on the tablet, go to the Settings>Wireless networks>Mobile network menu and check the “Data transfer” checkbox. Insert the modem and wait for the tablet to detect it and the network icon to appear (up to 30 seconds). To add a new connection point, go to “APN access point” and “menu”. When creating a new connection point, you must enter the details of your operator. If the modem was purchased tied to a specific operator, then some data will already be entered. After returning to the “APN Access Point” window, the configured access point should be selected and after a few seconds the “3G” icon will appear. After this, the setup is considered complete.

An example of setting up an Android tablet when connecting a 3G modem:

1) Go to Settings>Wireless Networks and check “3G”, then go to “Mobile Network”

2) Check “Data transfer” and connect the modem to the tablet. After that, click “APN Access Point”.

3) Press “Menu” and “New access point”. Enter operator details.

5) Go to the “APN Access Point” window and wait for your access point to become active.

If the APN is not saved, then check that PIN code entry is disabled on the SIM card or you need to restart the tablet. If the modem does not work correctly, carefully check the compatibility of the modem and the tablet. Do not forget to switch the modem to “modem only” mode before setting it up. It is advisable to insert the modem into the same socket, otherwise on some models problems arise when working with different sockets.

3G settings menu

If there is a “3G settings” item in the menu (available in some tablet models), then enter this menu, connect the modem and select “Add 3G network”. Here you need to enter your operator data and click Connect, after which “3G” should appear at the top. The connection has occurred and everything should work.

If the described menu items are not available on the tablet, you may need to install Quick Settings downloaded from the market.

Do not forget that there must be good 3G coverage and the signal is not weak, otherwise the connection will be interrupted.

When a tablet is connected to the global network via Wi-Fi, a security password is required. The most common problem is an authentication error. Never get nervous ahead of time and enter the security key again. Perhaps you were simply mistaken. Only after you are convinced that you are right, start looking for other reasons for the lack of communication and ways to eliminate it.

Setting up Wi-Fi on Android

The second of the simplest mistakes is the lack of permission to activate connections via wireless networks. How to set up a Wi-Fi connection on a tablet?

Through the quick access menu or through the “Settings” menu, activate the connection icon via a wifi network. Available free or password-protected networks will appear on the screen. Choose the one available or preferred for you and work.

The biggest advantage of connecting via Android is that the system immediately displays error messages. Thus, it is easy to identify and correct. Let's look at each of them in more detail.

Change password

If, when connecting to a wifi router, the device detects an access point, but the password is missing for some reason (you forgot it), you need to change it. All manipulations are carried out in the router settings section, when the tablet sees the wifi network, but the connection does not occur. Activate the menu and enter a new key combination. The changes need to be saved and the router rebooted again. Pay attention! The password must be re-entered on all computer devices connecting through this network.

Changing the encryption type

Budget Android devices suffer from incompatibility with certain types of routers. How to determine this? The tablet sees the network access point, but “Saved” is displayed on the screen. To fix the problem, you need to change the type of encryption with which the tablet works. It is preferable to choose wpa2 protection.

You need to follow this algorithm:

  • Enter the router's IP address in the browser's address bar
  • Activate the “Advanced Settings” item
  • In the “Wi-Fi” section, click “Security Settings”
  • In the “Network Authentication” menu, change the encryption type to the desired one
  • Reboot the router again.

Attention! The router's IP address is located on the back of the device. This information is usually displayed on a sticker or in the instructions for the device.

Personal IP address

When you try to connect, does your tablet display the message “Obtaining an IP address”? This happens when the device simply does not support the wireless version of connecting to networks.

In most cases, the router perfectly supports all three types of communication:

  1. 802.11n.
  2. 802.11g.
  3. 802.11b.

Problems may arise with your laptop computer. Go to settings and change the connection type to any other. The situation has not been resolved? Continue to the next point.

Disabling the MAC filter

If the network point is working correctly, the mobile device is connected, but the router does not see it, it is worth understanding the MAC and IP addresses. When might such a situation arise? If the network modem is configured specifically for certain devices and access of new devices to the signal is blocked. If the device's MAC code is not included in the router's list, the tablet will not be able to connect to the Internet via wifi.

Do this:

  • Go to the router menu “Settings”
  • Through the “Wi-Fi” section, find the “MAC filter” item
  • In the drop-down menu, activate the line “Disabled”
  • Reboot your home router
  • Reconnect the tablet.

Unstable connection

The device is turned on, the router is working, but the signal is poor?

You have two ways to solve the problem:

  1. You need to find out exactly what is not working - the router or the device. To do this, connect the tablet to another router. The signal has stopped cutting out and the connection is stable? The mobile access point needs to be replaced or re-flashed.
  2. Check if your device has enough charge. If the battery is almost empty, the tablet simply will not establish a connection.

Sometimes, due to software freezes or power failures, the router may malfunction. In appearance, everything looks completely normal, but the Internet has stopped turning on? Just reboot your router. To do this, you need to unplug it and plug it in again. Do not rush to start communicating with the tablet, wait 3-5 minutes. Mobile access points have this property - they connect some time after connecting to the outlet.

Bottom line


The stable operation of a wireless router and a tablet may depend on many factors. Before contacting specialists to reinstall the software, make sure that both devices are working properly. Then go through all the recommended points and try to troubleshoot problems experimentally. Only when the above measures do not help, take the router to a service center.

I forgot to ask: are you sure you paid your internet bill this month? Maybe this is what it's all about! :)

Did I help you solve your problem? Click on the icon of your favorite social network and share the material with friends. Perhaps they also need help setting up an Internet connection?

I was very glad to meet you, dear blog readers! Come visit, I have a lot more interesting and instructive material planned for publication!

Thank you for your attention! See you again on my blog. Sincerely, Rostislav Kuzmin.

The Wi-Fi module in a tablet or phone running the Android operating system is one of the most important components today. Wireless networks surround not only homes, but also at work, in your favorite coffee shops and even on public transport. Wi-Fi on Android usually doesn't turn on at the most inopportune times. Why might this happen? There are several options:

  • the password is entered incorrectly;
  • the network connection or system settings are lost;
  • there was a failure in the operating system;
  • the wrong firmware was installed;
  • The Wi-Fi module itself has failed.

Most often the problem turns out to be in the settings. Of course, if a smartphone falls into water, there is a possibility that something is wrong with the module. But if nothing happened, and the network suddenly disappeared, the error is most likely a software one.

If Wi-Fi on Android does not start, first of all you should:

Often the reason for Wi-Fi not working is very simple. But it doesn’t always involve an incorrect password or the wrong time. If after all the steps the Wi-Fi icon is still gray, it’s time to move on to something more decisive.

Restoring settings

The simplest solutions for restoring Wi-Fi involve setting the correct date and time. If airplane mode is not active and the date and time are correct, you can try resetting the device to factory settings. Having previously saved the data in cloud storage or on another device.

Android users have encountered the problem of forever loading when trying to update or install applications through the Play Market. This also affected the performance of the network. If this is your case, try clearing the Play Market cache and deleting temporary files.

Router settings

Do you go to additional settings and get the error “mac address not available”? Turn off Wi-Fi on the device, as well as the router itself. After some time, connect back and try to access the network again. If this does not help, the encryption settings on the router itself may have been changed. Some Android devices simply do not see encryption channels higher than 11. Change the router settings and connect again.

Android engineering menu settings

If your device is powered by a MediaTek processor (most devices with a Qualcomm processor do not have this option), you can go to the engineering menu and set the Wi-Fi settings directly through it. You can open it using the command “*#*#3646633#*#*” entered in the dial pad. For some tablets that do not have this panel, you can install special utilities to enter engineering mode. The settings are checked and set in the "connection" tab.

You should only configure something through engineering mode if you are an advanced user of the Android platform. This is a mode for developers; any changes at random can lead to unpleasant consequences.

Wi-Fi settings on Android TV-box

The TV Box, which also runs on Android, like smartphones and tablets, is also not without connection problems. To work with it, it is recommended to use an external Wi-Fi adapter or connect a cable, but this will only help improve the speed. And if there is no Wi-Fi connection at all, then it is recommended:

  1. Go to the file manager.
  2. Find the WIFI folder and the wpa_supplicant.conf file in it.
  3. Delete file.
  4. Wait a while and start searching for Wi-Fi on the set-top box.
  5. The device will automatically find a connection.

Didn't help? Time to check the software.

Software glitches

Wi-Fi may not work or randomly turn off due to recently installed applications. Go to the application manager on your mobile device and see which one receives the most activity during the flight. Such an application usually also mercilessly eats up the battery, so the smartphone or tablet “dies” faster. It will be enough to delete the application or install another version with which the error was not observed.

It is recommended to check whether you have any applications that restrict Internet access. So, you can set restrictions through a number of firewalls even without root rights. There are also special utilities for checking software, thanks to which you can see which application is causing the network to generate an error. Additionally, it is recommended to check the device for viruses - some of them may create problems with the network connection via Wi-Fi.

Installing the wrong firmware

The cause of problems with the operation of the Wi-Fi module may be custom firmware that blocks the connection. Manufacturers recommend installing only official firmware versions: custom versions are not always reliable. If problems arise after flashing, you should roll back the device to factory default or flash it again. Only now on the official one.



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