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How to repair an Android that does not connect to Wi-Fi (on all variants)

Android phones are impressive. Their features and design have amazed many users; But have you noticed problems with the Wi-Fi connection on your Android phone or tablet? If you did, you’re not the only one because Android Wi-Fi issues are quite common. That’s why we’ve created a list of solutions that can help you solve Wi-Fi issues on your Android devices.

We’ll talk about tips, workarounds, and solutions for Android smartphones: Samsung Galaxy, HTC, Nexus, and LG, as well as all variants. We will start with the simple solutions and turn to complex solutions to solve the problem you may be facing.

See also: To boot Samsung Galaxy S7 Edge into safe mode and Android will not be activated

Related: How To Fix Samsung Galaxy S9 Wi-Fi Problems


Solutions for Android will not connect to Wi-Fi

Why my Android phone / tablet will not connect to the internet?

Although there is not a single reason why you have problems with Wi-Fi on your Android phone, it can be classified into 4 situations.

4 Mögliche Gründe:

  1. Network configurations such as IP address and DHCP
  2. Software and firmware errors
  3. Passwords and misinformation
  4. Radio wave distribution: (WLANs are radio waves that propagate in a straight line and can be interpreted if you are at a remote location from the modem or behind discrete walls.)

Solution 1: Switch your WLAN over

Whether you can not connect at all or your Wi-Fi connection is interrupted, it is known that switching the Wi-Fi connection is effective in many cases. Drag down the notification area of your phone and find the Wi-Fi icon, tap it to turn it off, wait five seconds, and then turn it back on. Have the phone look for available Wi-Fi connections and see if the problem is resolved. This simple trick is effective no matter which model you have. It fixed Samsung Galaxy S2 Wi-Fi issues, but it has also solved Samsung Galaxy S7 Edge Wi-Fi issues for some users.

Solution 2: Switch the airplane mode

This is a solution that has many users working so try to switch the aircraft. You can search for the flight mode in the notification area of your Samsung Galaxy phone. If you can not find it, you can tap the icon that will allow you to review all icons in the notification area and search for the airplane mode. Turn it off, wait five seconds and turn it back on.

Solution 3: Is Bluetooth enabled on your phone?

The Bluetooth can cause a conflict for the WLAN because some users have noticed that on certain phones, when Bluetooth is on, the WLAN does not work. If your Android smartphone has Bluetooth turned on, turn it off in the notification area, and then try using your Wi-Fi network again to see if the problem is resolved.


Solution 4: The energy-saving mode

The energy-saving mode is designed to help your battery use less power. Since the Wi-Fi is known to quickly discharge the battery, disconnecting the power saving mode normally disconnects the WLAN. Make sure the power save mode is off. You can enter Energy Saver mode from the Settings menu on your Samsung Galaxy smartphone.

Many Samsung Galaxy S3 users had reported a problem that the Samsung Galaxy would not connect to Wi-Fi because of a bad connection. It was found that the energy-saving mode when the phone came back from the power saving mode disturbed the Wi-Fi and somehow interrupted the connection. The problem was in the software, so users had to make sure the sleep mode was turned off if they wanted to use a stable Wi-Fi connection.

Check that the sleep mode causes a conflict in your phone so that you can fix the wireless problem on your Samsung Galaxy device or another Android device.

Solution 5: Forget and restart all Wi-Fi networks

A useful way to solve Wi-Fi problems, especially if you can not connect to a network, is to delete all networks so that your phone’s Wi-Fi restarts. However, before you decide to proceed, make sure you have all the details you need to reconnect to your Wi-Fi network. This includes the network name and password needed to connect to the network.

  1. Enter the settings menu of your telephone
  2. Touch Connection
  3. Find Wi-Fi and tap it
  4. All Wi-Fi networks you’ve added to your phone are listed here. Tap each of the network names and tap Forget.

Now that the networks are being deleted, you need to add the network to which you want to connect by going to Settings and tapping Wi-Fi and then Wi-Fi network. Find the network you want to connect to, tap it, enter the password and you can connect.

Problems with the Wi-Fi connection have bothered many Android phone owners and we have tons of issues from them, such as Samsung Galaxy 2 Wi-Fi issues and Samsung Galaxy S4 problems with Wi-Fi fix. Certain owners of S7 and S7 Edge also complained about connection issues on their phone and this solution solved the problem for a few Samsung Galaxy users.


Solution 6: All about passwords

Passwords are invariably important as they are designed to protect the network from unauthorized access. If you enter the wrong password, you will not be able to connect. Even if you know the password, there is a possibility that you may enter it incorrectly. Make sure you enter the letters correctly and your phone has a caps lock key. A Samsung Galaxy S3 WLAN authentication error occurred when customers tried to connect to a network that used WPA2, but the issue was fixed with updates.

Solution 7: Connect to the right network?

In most cases, you may notice several networks with similar names. Make sure you are connecting to the correct network, otherwise you will not be able to connect.

Solution 8: Smart Network Switch

Certain Samsung Galaxy phones feature the Intelligent Network Switch feature. This means that the phone automatically switches to mobile data and uses the mobile data connection when the Wi-Fi connection is unstable. While you can easily forget about Wi-Fi if you do not want to use your mobile data connection, turn it off. Many users who have complained about the Samsung Galaxy S5 have dropped the WLAN signal over and over again and found this to be a helpful solution.

  1. Drag the notification screen down
  2. Touch the Wi-Fi icon to enter the Wi-Fi settings menu
  3. Now tap More on the top right corner of the phone
  4. A new box with information about the Smart Network Switch appears on the screen
  5. Tap Off to stop using the Smart Network Switch.

Solution 9: Restart your phone

When you restart your phone, you can solve some of your phone’s Wi-Fi issues. Hold down the power button until the power menu appears, and then tap Restart. In a few seconds the phone should be switched on again. Enable the Wi-Fi connection and see if it works as expected.

Solution 10: Operating System Update

Operating systems must be updated regularly. Your Android phone will work better if your phone software is updated on time. Your phone’s WiFi may not work because of a bug in the software. When a company detects an error, it publishes updates in the updates. As the Samsung Galaxy S3 became trend, one of the most common problems of its users was that their Samsung Galaxy S3 can connect to Wi-Fi but no internet. This was a solution that helped many users solve the problem. Not only does it work on the S3, many Samsung Galaxy users have reported that this solution also works for them on their phones.

  1. To check if your phone uses the latest software, go to Settings
  2. Touch About the device
  3. Touch Check for Updates or Download Updates Manually. Depending on the phone you use, you can find various options, but you’ll need to search for the option to check for updates on your phone to make sure your phone uses the latest software.

Solution 11: Stop Wi-Fi while you sleep

If your device continues to break the Wi-Fi connection, you should check the Wi-Fi settings. One of us readers complained, “My Samsung Galaxy S5 is constantly losing connection” and that solved the problem:

  1. Pull down the notification screen and tap the gear icon to go to your phone’s settings
  2. Now search for Wi-Fi and tap it.
  3. Depending on which Samsung Galaxy smartphone or version you use, you can see different options. Touch the three dots on the top right or the word “More.”
  4. Now look for Advanced in the drop-down menu and tap on it
  5. Under the advanced settings you will notice that “Wi-Fi remains activated during sleep”.
  6. You can choose between Always, Only if connected and never.
  7. Tap Always to make sure your Wi-Fi is always connected.

This can help you solve the problem of a connection break if the Wi-Fi disconnected because the phone went into sleep mode. It is helpful for many Android users who have not realized that their hibernate settings intervene with their Wi-Fi connection.

Solution 12: Restart your modem

If all devices connected to the modem do not work, it is advisable to restart the modem. To do this, you have to follow the manual that came with the modem. Depending on your model and modem type, you may need to perform several steps. Restarting the modem can solve Wi-Fi connection problems caused by modem problems.

If you notice the modem restarting – (read how to restart the modem on WikiHow.com.) The problem has not been resolved. Verify that you can connect to the network and use Wi-Fi from another device with the same modem. If all other devices can easily connect and use the connection, you can continue troubleshooting your phone.

However, if none of the devices can connect, you must check the modem. You can either call the modem manufacturer or follow the instructions given in the modem user guide.

Solution 13: Third-party app

Certain third-party applications may cause a conflict that does not allow the Wi-Fi to work as expected. Check to see if you’ve recently downloaded an app since you’ve faced the problem. Once you have done this, you need to check if the app has been updated. If it is updated and it is possible that the problem is due to the app, then uninstall or disable the app and try using the Wi-Fi connection again.

When one of our readers complained that his Samsung Galaxy S4 will not turn on Wi-Fi, he followed a number of troubleshooting steps before I realized it was a third-party app that caused the problem. To check if a third-party app is causing the problem or not, then turn your phone on in Safe Mode.

  1. Hold down the power button
  2. Next, tap and hold off
  3. You will be asked if you want to restart in safe mode
  4. Tao OK
  5. Your device starts in safe mode
  6. On the home screen, the term Safe Mode should appear at the bottom left of the screen.

Try to use your phone in safe mode and check if the Wi-Fi connection works without problems. If this is the case, a third party can cause the problem. You can then restart your phone in the usual way to switch to normal mode, and then check for updates to your apps. If all the apps have been updated but the problem persists, you can uninstall apps that you think will cause the problem until your Wi-Fi works properly.


Solution 14: Check the settings of your wireless router

If my Android phone can not connect to Wi-Fi, I usually think about it, settings of the wireless router – (read the official manual of linksys.com), which I also use, since I may be with the settings had busy and in the end the connection of my telephone with the WLAN blocked. Make sure your phone has access to Wi-Fi and the Mac’s address is not blocked. Otherwise, you will not be able to connect to the wireless router.

Solution 15: Date and time

Those who travel between time zones in particular can find problems with their Wi-Fi because of their date and the time of their Android smartphone. It must match the date and time on the router you want to connect to, or you may not be able to connect.

Make sure your phone’s date and time reflect the date and time of the location you are currently at. You can change the details by navigating to your phone’s Settings menu and then tapping Date and Time. Next, you’ll need to change the date and time at your current location and then try to connect to the wireless network.

Solution 16: Update the firmware of your modem

Certain Wi-Fi issues with Android phones do not really occur on the phone, but on the router used to connect to the wireless network. The router may be causing the problem and may require a firmware update to correct the problem. Check for firmware updates for your router and update it. You may need to follow the steps to update your router with a guide, or get online help for your router.

Once you’ve updated your router, try connecting the phone to the Wi-Fi network again and see if the problem is resolved.


Solution 17: Remove the cache and data from Wi-Fi Direct

If your Samsung Galaxy can not connect to the Wi-Fi network, you’ll need to clear the cache and data from Wi-Fi Direct to fix the problem. This solution works for all Samsung Galaxy phones up to the latest Samsung Galaxy S7 and S7 Edge. Deleting this data does not cause problems because the phone automatically created new cache files when the old one was deleted. However, you may lose all passwords that may have been saved. Make sure you know the network name and password for the network to which you are normally connected.

  1. Navigate to the settings menu of your phone
  2. Go into applications
  3. Tap Application Manager and look under All for Wi-Fi Direct
  4. Touch Wi-Fi Direct
  5. Touch Delete data and confirm
  6. Tap Clear cache and confirm

Solution 18: Delete the cache partition of your Android phone

When Samsung Galaxy S5 users have updated to Android Lollipop, many users have reported that the Samsung Galaxy S5 Wi-Fi is slowing down to Lollipop. This issue has been resolved by deleting the phone’s cache partition so that new cache files could be created for the phone. If you have encountered a similar problem updating your phone, this solution may be helpful. Once the cache partition is deleted, new data is automatically created on the phone.


Solution 18: Delete the cache partition of your Android phone

When Samsung Galaxy S5 users have updated to Android Lollipop, many users have reported that the Samsung Galaxy S5 Wi-Fi is slowing down to Lollipop. This issue has been resolved by deleting the phone’s cache partition so that new cache files could be created for the phone. If you have encountered a similar problem updating your phone, this solution may be helpful. Once the cache partition is deleted, new data is automatically created on the phone.

  1. Turn off the phone
  2. Press and hold the volume down button and the home button together, and turn on the phone by pressing and holding the power button.
  3. If you see the Android icon on your screen, release the power button, but continue to press the other two buttons until a menu appears on the screen.
  4. Once in the menu, use the Volume Down key to highlight the “Clear Cache Partition” option
  5. Now press the on / off switch to confirm your selection

Once the cache file removal process is complete, you will be back in the same menu. Use the volume keys to turn on Restart System and the phone restarts and returns to normal mode. Connect to the Wi-Fi network and see if it works. This solution was especially helpful if the Wi-Fi did not work after a recent upgrade or if it did not work because the system’s cache files were corrupted.


Solution 19: Reset your Android device to factory settings

This is the last but most effective solution for Android will not connect to Wi-Fi. When you reset a device to factory defaults, return it to its original state. This means that all data including the downloaded applications will be lost. For this reason, it is necessary to make a backup copy of the data before proceeding with the factory reset. All Samsung Galaxy phones allow you to back up data in the phone’s Settings menu before resetting. You can either use the built-in backup option or you can manually back up the data to a computer or use an app.

  1. Go to the settings menu of your Android phone.
  2. Tap Backup and Reset. Depending on the version of Android you are using, a similar option may appear
  3. Now tap Factory Data Reset
  4. Touch Reset Phone

Your phone will take some time to reset to factory settings and it will restart. Once this is done, try to check if your problem has been resolved after the factory reset.


Frequently asked Questions

What can I do if your Samsung Galaxy smartphone can not scan a Wi-Fi network?

This is often noticed on many Android phones. If you try to scan a network that is hidden, you will not be able to connect. To solve this problem, you can either show the network if you have access to the network settings, or you can manually add the network to connect. To add the network manually, you need to know the network name (SSID) and password, as well as the encryption type.

  1. Turn on your Wi-Fi by tapping Wi-Fi in your phone’s Settings menu.
  2. Now tap the button next to the icon to turn on Wi-Fi to start scanning the networks.
  3. At the bottom of the screen you will see the option Add Wi-Fi network. Touch it.
  4. Enter the correct network name and password and tap “Connect”

What to do if the Wi-Fi connection is still interrupted?

Is the Wi-Fi connection disconnected each time the phone goes to sleep? The disconnection problem is usually caused by the settings of your wireless network, which can cause the Wi-Fi connection to disconnect each time the phone is in sleep mode. The settings can be changed so that the WLAN is always on and you do not miss important e-mails or messages when the phone is idle. Access the Wi-Fi settings to change your settings so your Wi-Fi is always on. For more information, see solution 10.


What if I am connected to Wi-Fi but I do not have Internet access?

  1. Turn on flight mode
  2. Press and hold the power button for 7 seconds to turn off the phone
  3. Remove the battery (3-5 minutes)
  4. Hold down the power button for 1-2 minutes
  5. Replace the battery and turn on the device
  6. After 2 minutes, try to connect to Wi-Fi. Make sure the airplane mode is turned off.

What to do if the Wi-Fi connection on my Galaxy phone is too slow?

Slow connections can be very annoying. None of us enjoy a Wi-Fi connection that keeps us waiting too long to open the web pages or watch a video. Many vendors blame it during peak hours when many people connect to Wi-Fi at the same time. This is caused by Wi-Fi channels, where most users are on the same Wi-Fi channel at the same time.

An easy way to solve a problem like this is to use the Wi-Fi analytics app. It’s available on the Google Play Store and it’s relatively easy to download and install the app. It analyzes the network and helps you to check which channel is best for you.

Slow Wi-Fi problems are very present in the Galaxy series, especially the Samsung Galaxy s5.


  1. View solution 18, 17, 16 and 13
  2. Most people solved the problem by updating their device or modem firmware
  3. In most cases, you just need a simple router reboot. You can try to restart the modem. The modem works as follows:


  1. Press and hold the reset button for 10 seconds. Some modems require you to use a needle and put it in a small stop.
  2. Disconnect the modem from the power outlet and wait at least 5 minutes.
  3. replugging

If you try to connect to the modem from a remote location or behind discrete walls, it will not work. Note that these are radio waves that travel on a smooth / even path. If two or more walls block you, it can cause interference with your waves.

Another slow Wi-Fi workaround

  1. Download the app “DNS SETTING”
  2. Go to Wifi and forget your current WIFI
  3. Select your current WIFI and log in again
  4. Open the “DNS SET” app and select AUTO RUN


Why did my Android device indicate that a bug in Wi-Fi authentication has occurred?

What does authentication problem mean?

If you receive the message “wifi authentication error occurred”, this means that the network configuration of your Android device does not match or matches the router’s network. It can be

  1. You have entered the wrong password
  2. Incorrect SSID (Service Set Identifier -Wi-Fi Network Name)
  3. MAC address authentication or filtering
  4. Wrong wireless security (WPA / WPA2 / AES, TKIP)
  5. Wrong radio mode (802.11a / b / g / n)
  6. Wrong channels
  7. Dynamic Host Configuration Protocol (DHCP)
  8. Network Address Translation (NAT)


How to fix these authentication wifi problems

  1. Check your Wi-Fi password. Make sure Wi-Fi is visible as you type to avoid potential errors.
  2. In most cases, your router has a standard SSID name, such as Linksys, Netgear. If you have more than two networks with the same SSID, this can cause problems. On the other hand, an ISP recommends that you do not change the SSID, as this can lead to authentication errors and other WLAN problems. It’s best to reset the SSID name to the default value, and consider using no similar name.
  3. For your router settings, consider whether this option is set to Off or Disabled. Mac address filtering can restrict Mac addresses to connect to a Wi-Fi network. If this feature is enabled, check if your address is enabled.
  4. Make sure you have the correct wireless security settings (WPA / WPA2) ETC. These are special types of authentication and encryption provided by your ISP. These provide a degree of security and privacy. Try to search between them and find out which one works best for you. You can also use apps like Wireless LAN Repair and the Wifi app
  5. Switch between the radio mode. 5 GHz or 2.4 GHz. 802.11a / b / g / n is a default setting for the wireless communication network.
  6. Changing the channel can not only make your Wi-Fi faster, but also interference, authentication errors, and IP conflict issues. By downloading the Wi-Fi app, you can easily change your channel, or you can do so in the router backend.


Simple workaround for the error of Wi-Fi authentication:

  1. Navigate to Wi-Fi settings and turn on airplane mode
  2. Navigate to the Wi-Fi settings again, click on the preferred network, and then click the “Forget this network” button
  3. Turn off the airplane mode
  4. Reconnect to the WLAN (double-check password)


What if your wireless network still can not connect or receive an IP address?

  1. To change the IP settings of the router follow these steps: Settings> Wi-fi> Edit> Show Advanced Options and then change the IP settings to Static.
  2. Find the S5 MAC address from Wi-fi> Settings> advanced and make sure that we are missing the words.
  3. Address is present on staff Router It is better to switch WOW! the MAC filtering.
  4. If the channel is very crowded then the impact will be on the speed of Wi-Fi. So try to jump to a less busy channel.


What to do if Android Wi-Fi is not turned on?

If the Android phone does not turn on, turn off the Wi-Fi and try turning off the phone by turning it off, removing the phone’s battery (if the phone’s battery can be removed), and then wait thirty seconds on. When the phone is turned on, turn on Wi-Fi and let it connect to the network. If the connection is successful, the problem is resolved. You can read our full guide: Android will not spin or Android Wi-Fi will not turn on

On the other hand, if it still does not work, there is a possibility that something is wrong with the actual hardware of the phone. If your phone’s internal wiring is broken, your Wi-Fi connection can not be established. To remedy this, it is advisable to take your phone to a specialist who can solve it. If your phone is under warranty, there is a possibility that you will receive a battery replacement warranty if the problem can not be solved.


Common and simple circumstances that people overlooked

  1. Too many connected devices. IP conflicts can occur if multiple devices use the same IP address on the same network. (Find your router IP address) Make Makeof a really good guide on this
    “My Wi-Fi discovery is disabled”. Yes, people tend to see this simple solution. The number of reports we analyzed, 3 out of 10 users turned off their Wi-Fi.
  2. Connecting to the wrong network Even simple network information can solve the problem.
  3. Incorrect information. Most people forget the Wi-Fi password with a simple cap or space. Please be sure to make the password visible as you type.
  4. Modem cables are not plugged in properly. This is a simple but effective way to solve this problem. 1 in 10 people noticed this error.
  5. Your Wi-Fi radio waves are blocked (electromagnetic radio wave spectrum). Things that block your Wi-Fi: Channels – Too many Wi-Fi networks near you, such as: For example, your neighbor’s network and your work. This can be resolved by changing your channel or using the Wifi app. Home electronics such as radio and microwave oven can restrict or cause interference. Can also fix the “get IP address” error
  6. Your internet service provider. Contact your ISP. This can be a global problem, a downtime or a failure in the environment.

Samsung Galaxy Tab does not connect to the WLAN

The Samsung Galaxy tablet series has a tendency for Wi-Fi instability. However, there are a lot of ways to fix the Wi-Fi problem on the Tab 3 and these are explained in detail here.

If your Samsung Galaxy Tablet is not connected to the Internet, these simple solutions might work. “Consider connecting to a network while the connection is made quickly, turn off your Wi-Fi, and try connecting again.” This solution was provided by a user.

Change the date and time – to do this, tap the “Application from Home” screen and go to SEusettings> Date & Time> Automatic Date & Time, and uncheck the box to display the set time and date setting. Tap these options one after the other to set the time and date correctly.


Sometimes, users also need to adjust the Wi-Fi hibernation policy, which can fix the problem. Here’s how to do that:

  1. From the Home screen of your Galaxy Tab 3, go to Menu> Application> Settings> Wi-Fi Settings.
  2. Next, tap the Menu button, then tap Advanced.
  3. Touch the Wi-Fi sleep policy here.
  4. Options such as “When the screen turns off” are displayed, which automatically disable the Wi-Fi in standby mode, and another option is “Never connect”
  5. So choose the one that works best for you, while keeping the default Never.

In most cases, these solutions work on the following tabs: Samsung Galaxy Tab 3, Tabpro, tab 1o, tab S2, tab E, tab 7, and tab 4.

On which other tablets can this work?
Tablets like the:

Google Pixel C,

Sony Xperia Z4 Tablet,

Google Nexus,

Sony Xperia Z3 Compact Tablet,

Amazon Fire HD and

Lenovo Yoga Tab

Change workforce encryption algorithm. You can access these by the following URL

  1. Linksys –
  2. 3Com –
  3. D-Link –
  4. Belkin –
  5. Netgear –

What about other Android phones like Galaxy Note, LG G, HTC, SONY XPERIA, Xiaomi, Nexus and MOTO X? Most of the above solutions work for these Android devices.

Complaints about LG smartphones, such as LG G3 and the latest LG G5.


Sony Xperia Z Wi-Fi workaround

Enter service mode and fix WIFI put your Sony Xperia Z

  1. Navigate to:
  2. Dialer
  3. Enter: * # * # 7378423 # * # *
  4. The service mode is displayed
  5. Click Test
  6. Scroll down and select Wi-Fi
  7. It automatically scans and connects to an available network

Also, turn WOW! the endurance mode can work. She can check if it is WOW! by going to Settings> Performance Management> Stamina mode can work.

Wi-Fi connectivity problem on shortcut



  1. Wi-Fi on during sleep: always
  2. Scan always available: On
  3. Avoid Arm Connections: Off – Wireless and Network> Wi-Fi> Click on menu button> Advanced Wi-Fi further disable the option “Avoid arm connections.
  4. Wi-Fi Frequency Band Set to: 2.4GHz only
  5. Wi-Fi optimization: always on

You always have the option to set up the IP configuration. You can easily do this. Just select Settings, go to Wi-Fi, press and hold the network you want to connect to, and choose Change Network. Select the Show advanced options check box, and under Static IP settings, select Static.

These problems and their solutions have been found and are effective on Samsung Galaxy S3 / S2, Samsung Galaxy S4, Samsung Galaxy S5, Samsung Galaxy S6, S6 Edge and the latest Samsung Galaxy S7 and S7 Edge. They are also for the Samsung Galaxy Note series devices, including Samsung Galaxy Note 4 and Samsung Galaxy Note 5, tablets. You will find that these solutions are helpful and easy to follow. Our goal is to help you get your phone up and running without having to bring it to a professional. However, if these solutions do not work for you, you need to take your phone to a repair shop or Samsung store.

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