How to troubleshoot a Galaxy phone that won't connect to Wi-Fi

Last Update date : May 11. 2021

When you have difficulty connecting to Wi-Fi on your phone, you need to check whether it is due to the Wi-Fi signal not being found, or if the Wi-Fi network is found but cannot be connected. Perform the checks below to get your phone back online.

Before you try out the recommendations below, be sure to check if your device's software and related apps are updated to the latest version. To update your mobile device's software, follow these steps: 

Step 1. Go to Settings > Software update.

Step 2. Tap on Download and install.

Step 3. Follow the on-screen instructions.

What to do if the Wi-Fi network is not detected?

There can be various reasons for not being able to connect to the Wi-Fi network normally. For example, the router may not be working properly or there may be an issue with your phone's network settings.

Check 1. Make sure the router is available

Check if the router is working properly. Make sure that it's powered on, connected to the Internet, and that your phone is within the router's Wi-Fi range. In addition, if too many devices are connected to one router, the Wi-Fi may not be detected.

wifi router

Note: The router display may vary from device to device. Check with your router provider.

Check 2. Restart the devices

Try restarting your Galaxy phone, router, and modem.

Step 1. To restart your phone, tap the Power icon in the Quick panel, then tap Restart.

Step 2. Turn your router and modem off and on again. When turning the router and modem off, unplug the power plug and plug it back in, and then turn on the power. 

Step 3. After you restart each device, see if the issue is fixed.

Check 3. Reset the network settings

Follow the steps below to reset the network settings and turn on Wi-Fi again.

Step 1. Go to Settings, and then select General management.

Step 2. Find and select Reset.

reset network settings step1

Step 3. Choose Reset network settings.

Step 4. Tap on the Reset settings button.

reset network settings step2

Step 5. Tap on the Reset button.

reset network settings step3

Note: When you reset the network settings, the Wi-Fi information, mobile data, and Bluetooth connection are reset.

Check 4. Start your device in Safe mode again

Try the Wi-Fi connection in Safe mode. If your Wi-Fi works on your phone in Safe Mode, the problem may be caused by a recently downloaded app, and that app should be uninstalled.

To find out which app is causing the issue, you can try uninstalling your phone apps starting from the one that was most recently installed. See if the issue is fixed after each app is uninstalled. If the Wi-Fi connection issue only happened recently, you should only be uninstalling apps that were recently installed. 

Step 1. Open Quick settings. Tap the Power icon at the top of the screen.

Step 2. Touch and hold Power off until the Safe mode icon is displayed.

Step 3. Tap Safe mode to start your device in Safe mode. If you've entered Safe mode successfully, you will see Safe mode displayed at the bottom of the screen.

wifi safe mode
Check 5. Make sure that you're using the correct Wi-Fi password

If there is a lock icon beside the Wi-Fi network icon, it is a password protected network. Make sure you have entered the correct password. Wi-Fi passwords are case-sensitive.

wifi password lock
Perform a Factory data reset

If the above methods do not work, you may bring your device back to the factory default settings just like when you powered on your device for the first time.

Step 1. Go to Settings, and then select General management.

Step 2. Select Reset, and then tap on Factory data reset.

Step 3. Scroll down the page and tap on the Reset button.

Step 4. Tap on the Delete all button. 


  • Factory data resetting a mobile device is not reversible. 
  • Make sure that all of your information is saved to a backup somewhere else before attempting to reset your phone.


  • If you're connected to a Wi-Fi network but cannot get online, try using the Wi-Fi network on another device. If other devices also cannot access online, that network service may be faulty, so contact your Internet provider for help.
  • Device screenshots and menus may vary depending on the device model and software version.

If you are experiencing difficulties with your Samsung phones, tablets, or wearables, you can send us a question in the Samsung Members app.

This allows us to take a closer look at what is happening. The data is anonymized and only held for the duration of the investigation. Find out more about sending an error report through the 'How to use the Samsung Members app'.

Thank you for your feedback!

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