The tablet shows no network what to do. Returning to the network: what to do if the tablet does not see the SIM card. Entering the wrong password. What to do if the tablet does not connect to the Wi-Fi network

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.

We live in a time when almost any operation can be performed using a smartphone or tablet. When you can find absolutely any information on the Internet in a matter of seconds. When, sitting at home, at work, or even while on the road, you can listen to any music or watch any video ever uploaded to the network. What can baffle or frustrate us most these days? Only that moment when, unexpectedly for us, the phone or tablet does not connect to Wi-Fi, and we are unable to access the Internet. Why sometimes a phone or tablet does not connect to Wi-Fi, why errors occur when trying to connect and how to deal with them, we will look at in this material.

There can be many reasons why the device does not connect to the wireless network.

It is worth immediately clarifying that this small collection of guides is of equal value both for those who access the network using a phone and for those who use a tablet for these purposes. The Wi-Fi module in these devices works identically, so if problems arise when connecting to the Internet, the solution is most often the same for all users and devices.

Most often, Android users have problems connecting to the network, but the system itself provides much more information about a particular problem that arose during the connection. That is why we will look at problems connecting to Wi-Fi using Android as an example.

When a user connects to Wi-Fi, an Android phone may display error messages containing various text. It is this text that will help us determine why the device cannot connect to the Internet, and will also help us eliminate the cause of this problem.

After selecting one or another access point, the phone may show the following messages:

• "Obtaining an IP address..."
• "Authentication..."
• "Disabled."
• "Saved, WPA/WPA2 security."

There is also a situation where the connection was successful, but the pages still cannot be opened.

In the case when an Android phone or tablet does not connect to the Internet via Wi-Fi and constantly reports only that an IP address is being obtained, the simplest thing you can do is to delete the network and its settings from the device’s memory and try to connect again. To do this, click on the name of the access point in the device settings and select the “Delete” option in the context menu. After a few seconds, try connecting again. In this case, your phone or tablet will require you to enter the password again, so if you are not connecting to your home router, you should check in advance that the password is spelled correctly.

Authentication

The reason why an Android tablet or phone may constantly display such a message is most likely due to the password. First, you need to make sure that you entered all the password characters correctly and did not make a typo anywhere. If the Internet does not turn on for quite a long time, displaying a similar message, remove the network as stated in the previous paragraph of the instructions and try to connect again. Secondly, if this is not your first time connecting to the selected Wi-Fi network and the connection previously occurred without problems, you should check to see if the password has changed since the last successful connection. This is relevant for cases when a smartphone or tablet is not connected to home Wi-Fi.

Problems not related to the mobile device

All subsequent tips that we will give you in this material are in one way or another related to router settings, so they will be relevant primarily in the case when your tablet or smartphone experiences difficulties connecting to the network directly at your home. That is, where you can independently change the settings of your network equipment.

First, you will need to find out why your gadget does not work with the selected access point, why it refuses to connect to it, and then change some of the router’s settings by logging into its control panel through any browser or through a mobile application, if provided by the manufacturer.

If your Android tablet or smartphone cannot connect to the Internet in your home, there may be a simple reason for this. Even though the router may appear to be working visually, its software may be frozen. In this case, a reboot will help. Unplug the appliance and wait a few seconds (7–10). After that, plug it back into the network and make sure it works by checking the indication. After a few seconds, check if your mobile device can see the access point and try connecting again. If the gadget does not see the network, most likely the router is still turning on and you need to wait from a few seconds to a minute.

Change password

If your gadget sees an access point, but you cannot remember the password for your wireless network located at home, you can change it at any time in the router settings. To do this, go to the appropriate settings section and set a new symbol combination. There must be at least eight of them. Save the changes and reboot the router. Please note that after this procedure, you will need to enter a new password into each device that works with this access point and receives a wireless signal through it.

Changing the encryption type

In some situations (this is especially true for budget-class Android devices), it may turn out that the built-in Wi-Fi module does not work with certain types of encryption. This leads to the fact that the device sees the access point, but only displays the “Disabled” error and does not connect to the Internet. To fix this problem, you will need to open the settings of your router and change the type of encryption with which your mobile device works. We recommend choosing between WPA/WPA2 and WPA-PSK types. These encryption standards are supported by the largest number of devices.

Change channel

For some situations in which a mobile gadget does not connect to the Internet via a wireless network, it will also be useful to change the channel through which the signal is heard. The reason for changing the channel may be a situation when the device sees the access point, but the connection does not occur. This is also due to compatibility issues between network equipment and the Wi-Fi module. In total, in the router settings you will find up to 12 channels, but, as a rule, not a single budget gadget on Android works with a channel higher than the ninth. Consider this information when setting up your network.

Disabling MAC and IP filters

In a situation where the network equipment has been tested and is functioning correctly, the mobile gadget sees the access point, several similar devices access the network through the same device, but the smartphone still does not connect to the target network, it is worth looking into the MAC and IP address filter in the parameters router. Sometimes network equipment is configured in such a way that only specific devices located in your home can obtain the right to access the Internet, the MAC and IP addresses of which are registered in a special section of the control panel of the modem or other network equipment. Disable all unnecessary filters and restart the router. Don’t forget - it turns on from a few seconds to a minute, and only after that you should check whether the access point is visible to the mobile device.

Conclusion

As you can understand from our short instructions, almost any problem that arises when connecting a mobile device to a wireless network can be solved in a couple of minutes, having the necessary information and access to the network equipment settings. We hope that our instructions helped you eliminate errors and now you can easily access the Internet from any of your gadgets. If this still doesn’t work out, we recommend going through the entire list from beginning to end and trying to use all the tips without exception.

Connecting a tablet to Wi-Fi in most cases does not cause any problems: in the corresponding section of the electronic gadget’s menu, the required point is selected, a password is entered, and Internet access is opened. Along with this, in some cases, connecting to a wireless network becomes impossible for a number of different reasons. After reviewing the information below, you will learn why your tablet may not connect to Wi-Fi and what to do to resolve any problems.

Important note! The root of the problem in the vast majority of cases lies in the settings of the router or the tablet itself, and very rarely the lack of connection is caused by the inoperability of the built-in Wi-Fi module or a temporary shutdown of the router.

Incorrect time and date settings

If everything is fine, congratulations. Wi-Fi connection not working? Continue reading the instructions.

Password problems

To solve the problem, go to your Wi-Fi settings, delete the old profile and try connecting again.

Software settings failure

The main page provides information about the current connection status, and the Known section provides information about Wi-Fi points to which the tablet has ever been connected.

Restart your device and try connecting to Wi-Fi again.

Incorrect tablet settings

Attention! Before resetting, be sure to back up the required files and contacts - everything will be deleted.

In Settings, open the “Backup & Reset” tab.

Select Reset Settings.

Review the proposed system information, confirm your intentions, and then try connecting to Wi-Fi again.
Presence of malicious software

Those who claim that Android is virus-free are mistaken. There are viruses, but most of them are not large-scale malicious programs that make the device’s operation completely impossible, but so-called. “minor pests” that make incorrect changes to some functions.

Download the application (Antivirus for Android). Launch and scan your device for malware. If you find suspicious files, follow the application's instructions.

WiFi router settings

Go to your device settings. To do this, connect to the router via a wireless connection or cable (you can from a computer, laptop, any smartphone or tablet, etc.). You will find connection recommendations in the instructions specific to your router. In most cases, to do this you need to enter 192.168.0.1 in the browser address bar;

Go to “Wireless Settings” (the name may vary depending on the brand and model of the router). Make the following changes: “Mode” - “11bgn mixed”, “Channel” - “Auto”. Next, open the MAC Address Filtering tab and select Disabled.

Have you tried all the above methods, but still can’t connect to Wi-Fi? Most likely, the problem is in the tablet's radio module. In this case, you need to contact a specialized service center with a request for diagnostics and 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

If you can see other wireless networks in the available list but cannot find them, please use the next step to check for problems. Contact your router for support if you are unsure how to check your router settings. Note. Different countries have different laws regarding wireless channels.

If you don't know how to confirm your wireless password, contact your router's support team. There are various reasons for this kind of problem, the wireless signal is too weak, there is too much interference, problems with the wireless adapter and the wireless settings on the router.

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.

Check your wireless signal strength, if it is weak, please move closer to your router and try again. Change your router's wireless channel to 1, 6, or 11 to reduce interference from other networks. If you don't know how to change your router settings, contact your router for support.

Solution 5: Reboot the surface

Reinstall or update the driver for your computer's wireless adapter. Solution 5. for more solutions. . Reboot your surface again. If you still can't see your wireless network on your Surface, try Solution 6: "Can't connect to your wireless network" section for more solutions.

Solution 6

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

Test your network on another device

If you don't see your wireless network listed in the available networks on your Surface, first make sure your network is available and working correctly on another device. If you can't see your wireless network on any device, the problem may be with the network itself. Go to Wireless network is not available on other devices below for some possible solutions. The Wireless Network section is available on other devices, but not on the surface below.

Restart your network equipment

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

Solution 3: Update your wireless network firmware

After all the lights on the devices go out, wait at least 30 seconds and reconnect the modem. Plug in your router and wait another minute.

• Unplug the power cord from your modem and wireless router.
• Some modems have a backup battery that prevents light from escaping.
• For this type of modem, press and quickly release the reset button.
• If you don't see a reset button, remove the battery.

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:

Check the manufacturer's website to see if firmware updates are available for your hardware. If you are still having problems with your wireless network, contact your ISP or the manufacturer of your wireless router. Tell them that none of your devices can see your wireless network.

Solution 5

If you still can't see your wireless network on your surface, try Solution 5. Some channels work better than others. 1 and 6 are popular and work well for many people. This app will give you an idea of ​​what channels may be available or when you touch a nearby router. It sounds simple, but it is a solution for many people. Routers often accumulate junk in the system, which can be cleared by removing the power cord for at least 30 seconds and then plugging it back in.

• 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.

After the router has established a connection, reboot the tablet. You should also check if there is a firmware update for your router. This may make a difference. In some cases, some people simply replaced a really old router and ended up being really happy.

It's also possible that it might just say "saved" and do nothing. connection and tell it to forget your credentials and try again. If your tablet at some point says it's saved but you're obviously not connected, you may have a bad signal from your router, or you're too far away, or there's other interference, or Sometimes it can happen if you can't authenticate correctly with the router. If you still can't connect but see a strong signal, try not encrypting long enough to determine what you can connect and adjust accordingly.

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.

Solving problems on the router side

To narrow down the problem, if all else fails, try connecting to a friend's public hotspot or router. At the very least, turn it off completely and then back on again. The same applies to the microwave oven. Repeaters available. The best ones will be the same brand as the router, but others work.

Luckily for you, there are some things you can do to make it work correctly. As you probably know, you need to reconnect your wireless internet connection to your cell phone so that you are not using data from your wireless service provider. It's usually faster and definitely more affordable.

To change the channel in the router settings, go to the “Wi-Fi” section and go 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

Switching to your data plan on your smartphone can add up very quickly. We'll start with the basics first and go from there. This seems obvious, but if the wireless network, whether at home or at work, is a secure network, rather than requiring a password to connect to it. Make sure you triple check the password you entered when trying to connect to it. The password will be case sensitive, so if you have capital letters or special characters, make sure you enter them in capital letters.

Error message with authentication failure

Often you'll find an option in the bottom left corner of your phone's keypad that will allow you to switch to capital letters and special characters. Make sure you know the correct password and make sure you enter it correctly. Enter it again now as an extra precaution. Either way, check and make sure you are connected to the correct network. Drag the status bar at the top of the screen down. Authentication problems are often a password problem. Following the first step in this article and triple checking your password usually resolves authentication failure errors and allows you to get back on track and connected to your network.

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.

So the foursome checks the password one more time, just for good measure, and makes sure it's 100% correct in every way. Don't forget about Airplane mode because if it remains on, your phone won't accept calls or allow mobile data if you want to use it.

Can't find available networks

This process sounds a little strange, but sometimes it can eliminate that annoying error message. Some wireless routers have a limit on the number of devices you can connect to. You don't need to press the reset button, just unplug the power cord from your router or modem, count up to 15 seconds, and then plug the power cord back in, wait a few minutes for the device to boot, and then try again. Unplug the power cable to 15 and plug it back in.

What to do if the tablet sees the network and connects, but the connection is unstable

• Try connecting the device to another router and check if the connection is stable. If the connection is stable, then the problem is with your home router.
• If your tablet runs out of power while accessing the Internet and it is connected to the power supply, check the connection with the adapter turned off. A faulty power supply can cause wireless problems.

If all else fails, watch this video and repeat:

If it's still connected but not being used online, power on the phone, turn it off, and then on again. This often happens on the cell phone itself, if you have a power saving app or a network app or app that you downloaded around the same time you noticed this problem, then uninstall it, turn on the phone and check if that helps, if he didn't do it, move on to the next step. Okay, one last thing, but if you've tried the suggestions and tips listed above, then this last step should fix the problem.

If you have used the above tips, but the device still does not see the network, contact a specialist. You may need to reflash your tablet or router.

Technologies do not stand still. Mobile devices, with which you can easily and quickly access the Internet, are an integral part of every modern person. But what is a tablet without Wi-Fi? Just a piece of plastic and metal. Unfortunately, it often happens that the tablet does not see Wi-Fi. Next, we'll look at why this might happen and how to fix these problems.

You may have a software bug, a glitch, or perhaps even a virus on your mobile phone and will need to perform a full backup and reset on the device. So you don't lose anything and after performing the reset you can get your information like contacts, pictures, videos, texts, etc. if you're not entirely sure what you might need to save or how to save it, or even how to reset it, you can read the detailed step-by-step guide.

Entering the wrong password

After all, it's your device. You can't use it the same way you always have. All you have to do is click on the network of your choice and connect to it.

• To access quick settings, swipe down from the top of the screen.
• If yes, it should look something like the screenshot below.
• For a secure network, you will also need to enter your password.

First, you should understand that Wi-Fi technology has different standards and protocols. That is, today there are many different versions of Wi-Fi. However, only three standards are used in everyday life:

1. 802.11b is the oldest standard, which operates at 2.4 GHz and has a maximum throughput of up to 11 Mbps.
2. 802.11g is a standard that was approved in 2003. Allows you to achieve data transfer rates of up to 54 Mbit/s. Operates at a frequency of 2.4 GHz.
3. 802.11n is the fastest wireless communication option, which allows you to achieve speeds of up to 300 Mbps. This standard operates at a frequency of 5 GHz.

As you can see, some of the standards operate at different frequencies. This means that one of the reasons why the tablet does not see Wi-Fi may be due to frequency differences. That is, if the router only operates at a frequency of 5 GHz, and the tablet only supports 802.11b or g mode (2.4 GHz), then it is not surprising that the gadget cannot see the access point. There's nothing you can do about it here. Just check its technical specifications when purchasing a tablet.

You can now click on network again and enter your password again. . If a network is unavailable, your tablet will forever check for available networks and notify you if it finds any open network. How do you check if the network is within range?

In this case, you should move closer to the router (get close) and check if the tablet detects this access point. If it does, then the problem is a weak antenna. In this case, you can try to strengthen the antenna. But you will do this at your own peril and risk, since not all methods are simple and safe.

The problem may lie elsewhere. In this case, the source of difficulties can be both the router itself and the access point to which it is trying to connect.

Why Android doesn't see the Wi-Fi network: Video

How to identify the problem

Often the tablet does not see Wi-Fi due to the fault of the access point itself. One of the reasons was described above (difference in supported frequencies). But sometimes, in order to secure their home network, owners hide the access point. Therefore, first of all, you should go to the router settings and check whether the wireless mode is turned on and whether the network is hidden. All this is checked in the Wi-Fi settings in the router.

If you uncheck the first line (“Enable wireless broadcasting”), the router will not distribute the network at all. If you uncheck the second line (“Enable SSID broadcast”), the network will be hidden. That is, Wi-Fi will be distributed, but devices will not see the network name. You must connect to such a network manually.

If everything is turned on in the router settings, then it’s worth checking whether the tablet can see at least one network at all. This is done simply. Just go to your friends' house or to a cafe that has Wi-Fi, and so on. If your tablet sees other networks, then the problem is with your router. If the tablet does not find a Wi-Fi network anywhere at all, then the problem is with the tablet.

Solving problems on the router side

Articles on the topic

We have already discussed the basic settings of a Wi-Fi router above. That is, you check what Wi-Fi mode the router uses, as well as whether wireless broadcasting is turned on and whether the network is hidden. If all these parameters are in order, then you will not be able to configure anything else. In this case, you should reboot the access point. Simply unplug your router for 7-10 minutes and then plug it back in.

If after this the tablet still does not see the Wi-Fi network, then you should reset it to the factory settings. If this does not help, you will have to update the software, since, most likely, there was some kind of malfunction in the system. You can find instructions for updating the software, as well as the firmware itself, on the official website of the router manufacturer. If even updating the software does not help, you will have to buy a new router. When choosing, pay attention to what Wi-Fi modes and standards the access point supports.

The problem is on the tablet side

If you determine that the problem lies specifically in the tablet, that is, it does not see any network at all and does not access the Internet even in close proximity to access points, then there are several options.

First of all, you should simply reboot your device. The fact is that due to the accumulated cache (garbage), the tablet may not turn on the wireless adapter at all, which is why the search for networks does not even begin. That is, the tablet does not receive Wi-Fi. A reboot resets the cache and restores minor system glitches.

If this does not help, then you should move on to more drastic measures. It’s worth saying right away that the Android system is designed in such a way that there are no settings like on a PC. You cannot reinstall Wi-Fi adapter drivers, reset network settings, or configure the network adapter. Connection to networks occurs automatically. Therefore, if none of the above helps, then you will have to do a factory reset.

Another reason why the tablet does not receive Wi-Fi may be that the antenna terminal came off as a result of a fall (probably, there is no such tablet that has never fallen). Also, the contacts could oxidize due to high humidity or, if the device was disassembled for repair, then during assembly the technician could simply forget to connect the antenna. In this case, you need to disassemble the gadget: check whether the antenna is connected and clean the contacts.

Of course, such reasons arise extremely rarely, but they are still worth considering. Also, do not forget that sometimes, due to intensive work, the network adapter may simply burn out. You won’t be able to check this at home, and without such an adapter, the tablet, of course, will not be able to access the Internet. Therefore, if you have tried all available measures and nothing has helped fix the problem, it is time to take your gadget for repair.

Enthusiasts are sensitive to the router. They tinker with the settings, fearing unauthorized access, and supplement the wireless interface with MAC address restrictions. This figure is not unique. Some programs, including Windows snap-ins, allow you to change the number, however... especially at home, people will be careful not to do this. Therefore, the MAC address filter remains an effective defense. True... someone else's tablet doesn't connect.

The Internet is replete with “practical” advice, like:

1. Re-enter your password.
2. Change the encryption type (AES), protection (WPA), key.
3. Reboot your phone, router, tablet, brain.
4. Try a device from another brand: Samsung, Lenovo...

This can only be done out of desperation. When the brain stopped working...

Admin Panel

The lion's share of problems are resolved through the admin panel. Avoid updating software via Wi-Fi, try to connect using a cable:

1. Open your browser.
2. Enter the address of the local router's admin panel (192.168.0.1, 192.168.1.1), login, password.

Router filter

Let's learn how to check the settings using a typical D-Link example. Localization within the admin panel may vary noticeably. Patiently search for the section you need.

1. Log in to the admin panel.
2. The filter usually concerns only the wireless interface (Wi-Fi, wireless). The list of cables connected is obvious.

The router model shown in the figure supports two modes:

• Ban (black list).
• Permission (whitelist).

Check existing settings, reset, add. We remind you: any operating system (Android, iOS) will allow you to find out the MAC address. Sometimes you can even change the value. Using the phone menu, set restrictions and permissions.

Channel congestion

The new router software analyzes channel congestion. Check the available ones, select free frequencies by manually setting the number.

An alternative option is to download third-party products that do a similar job. The screen shows the low load on the first three channels allowed by the Russian Federation. Apple recommends that in the 2.4 GHz band you need to set the channel width to 20 MHz (not supported by older hardware). The 5 GHz region is free of these restrictions.

This is interesting! Typically, the router automatically selects the minimum occupied frequencies. Therefore, advice to change your number is often caused by despair.

Regional affiliation

There are devices of other regional origins. Old routers completely ignore the law, new ones adjust the list of available channels according to the given country. Check, the cause may be a mismatch in regional settings. Change the country, setting, for example, the USA.

It is unprovable, but the device may well change the signal level in accordance with the law. After all, it tracks the number of channels. The level is approximately shown by the scale of the tablet itself. Try it.

Authentication Error

The problem concerns the case of an incorrect password entry. Check two points:

1. The access point name is correct.
2. Match the alphanumeric combination of the key with the given one.

Protocol version

The IEEE committee is constantly improving the standard. Today, the 60 GHz range is being actively developed. Ensure maximum compatibility by choosing mixed options among the router settings:

• 11 b/g/n mixed.
• 11g/n mixed.

The chance of inconsistency drops sharply.

Number of subscribers

It happens that the smartphone sees the Internet, the Asus laptop connects, the tablet does not want to surf the network. Check the limit on the number of simultaneously connected subscribers:

1. Visit the admin panel.
2. In the Wi-Fi notes, find out the number of simultaneously connected subscribers.

Even if the number is less than the number of devices, remember your ubiquitous neighbors. Rarely do attackers live nearby; they could have entered by accident, occupying a dedicated resource. The number 0 usually indicates no restrictions.

Try increasing the limit. First, make it endless, then be guided by circumstances. If it works, start reducing the volume. New modifications even show a network map, displaying connected devices. The location of the breakdown (router or tablet) immediately becomes obvious.

The map will help identify the fact of unauthorized entry from a neighbor’s phone...

Saved…

Sometimes he writes: “Saved in memory. Security type WPA/WPA2...". Take the trouble to get closer and grab your tablet. You will first see the inscription “Connection...”, then – “Obtaining an IP address...”, finally – “Connected”. This means a low signal level at the beginning. Therefore the network does not work.

Then take a comfortable chair again - the connection will remain. If it’s interrupted, you’ll have to take the device again and bring it closer.

Signal level

The point is closely related to the previous one. Some routers allow you to set the signal level; an external antenna can correct the situation. The transmitter power is limited, so it will not be possible to increase the radiation indefinitely. Sometimes you have to use external antennas.

Change SSID

Old routers had a unified SSID. The simultaneous operation of several such devices nearby, equipped with different passwords, is impossible. Weak phones usually pick up the nearest access point; Windows refuses to display more than one network with the same SSID. If you notice a problem, change the name. Let it be clearly unique. Otherwise, an attempt will be made to connect to a neighbor, whose password, of course, is unknown.