How to fix a Samsung Galaxy S9 that keeps disconnecting from Wi-Fi network (easy steps)

Network errors including Wi-Fi drops or intermittent Wi-Fi internet connection emerge among the widespread issues affecting mobile devices regardless of brand and operating system they are running on. These problems can be attributed to various factors from account issues to network outages, bad apps and faulty updates, incorrect settings or worst, hardware damage. The last factor however is rarely involved but it can be the one to blame especially if the symptom started to occur with previous instances of dropping or liquid exposure on the device. Should this be the case, service would be necessary to fix the problem. Otherwise, you’ll have to deal with and troubleshoot software issues on the phone that eventually caused your Wi-Fi to keep disconnecting or dropping. Below is a rundown of standard procedures and potential solutions to a relevant issue on the new Samsung Galaxy S9. Read on to learn what to do if ever your phone keeps disconnecting from your Wi-Fi network.

Before going further, if you found this post because you were trying to find a solution to your problem, then try to visit our Galaxy S9 troubleshooting page as we’ve already addressed most of the commonly reported issues with the phone. We’ve already provided solutions to some of the problems reported by our readers so try to find issues that are similar with yours and use the solutions we suggested. If they don’t work for you and if you need further assistance, fill up our Android issues questionnaire and hit submit.

How to fix Galaxy S9 that keeps disconnecting from WiFi


Before you start performing any of the subsequent solutions, reboot your wireless router or modem. Doing so will help deal with possible firmware crashes in your router or modem that might have caused instability. This will also refresh system functions of your wireless router/modem.

First solution: Restart your phone.

To rule minor glitches out from the possible triggers, try performing a soft reset or reboot your Samsung S9 first. This will not affect your personal information or any critical data saved in the internal memory of the phone so creating a backup won’t be needed. Here’s how you do it:


  1. Press and hold the Power button.
  2. Tap the option to Power off.
  3. Tap Power off again to confirm.
  4. After about 30 seconds, press and hold the Power button again until your phone boots up.

See if that fixes the problem. If not, then move on to the next solution.

Second solution: Forget Wi-Fi networks on your phone.

There are times when your wireless network gets corrupted and becomes unstable thus resulting to frequent Wi-Fi drops or intermittent connectivity. To fix the problem, you need to refresh your Wi-Fi network either by rebooting the router or forgetting and readding your Wi-Fi network on the phone. Here’s how:

  1. Swipe up on an empty spot from the Home screen to open the Apps tray.
  2. Tap Settings.
  3. Tap Connections.
  4. Tap Wi-Fi.
  5. Select the Wi-Fi network you wish to forget or remove. Or you can also delete all saved networks on the phone to prevent any of them from causing conflicts.
  6. Tap Forget to confirm.

Restart your phone to add your Wi-Fi network again with these steps:

  1. Go back to Settings-> Connections-> Wi-Fi menu.
  2. Make sure the Wi-Fi switch is turned on.
  3. Wait for your device to scan for Wi-Fi networks available.
  4. Tap to select your Wi-Fi network in the list.
  5. If prompted, enter the correct password for your Wi-Fi network.

Wait until your device is connected. You may do some test browsing to see if the Internet is already working stable.

Third solution: Reset network settings.

There are many factors that can mess up your network settings and likely result to problems like this. Faulty updates are usually the culprit. Hence if the problem started after installing a new software update, it’s possible that your network settings have been altered automatically when the update was implemented. To fix the problem, you can try performing a network settings reset with these steps:

  1. Swipe up on an empty spot from the Home screen to open the Apps tray.
  2. Tap Settings.
  3. Tap General Management.
  4. Scroll to and tap Reset.
  5. Select the option to Reset network settings. This will erase all your current network settings and restores the default values.
  6. Tap Reset Settings.
  7. If prompted, enter your device PIN or password.
  8. Tap Reset Settings again to confirm action.

Fourth solution: Wipe cache partition.

Temporary files that are stored as cache in the system partition can also cause you the same trouble when they crashed. To make sure this isn’t inflicting you this trouble, wiping the cache partition on your Samsung S9 can help. Here’s how it’s done:

  1. Turn off the device.
  2. Press and hold the Volume Up key and the Bixby/Home key, then press and hold the Power key.
  3. When the Android logo displays, release all three keys.
  4. An ‘Installing system update’ message will show for 30 – 60 seconds before the Android system recovery menu options appear.
  5. Press the Volume down key several times to highlight wipe cache partition from the given options.
  6. Press Power key to select.
  7. Press the Volume down key to highlight Yes, then and press the Power key to confirm selection.
  8. When the wipe cache partition is complete, Reboot system now is highlighted.
  9. Press the Power key to restart the device.

Wiping the cache partition doesn’t delete your data and personal information from the internal storage so it doesn’t result to any sort of data loss.

Fifth solution: Master reset/factory data reset.

  1. Swipe up on an empty spot from the Home screen to open the Apps screen.
  2. Tap Settings.
  3. Tap General management.
  4. Tap Reset.
  5. Select the Factory data reset option.
  6. Scroll to the bottom of the screen then tap Reset.
  7. Select the option to DELETE ALL.
  8. If prompted, enter your credentials for screen lock and Samsung account verification.
  9. Tap Confirm to continue.
  10. Wait for the reset to finish and your device to reboot.

You can also perform a factory reset through Android recovery mode. A more detailed walkthrough can be found on our Tutorials page so feel free to visit the page if needed.

Seek further assistance

Contact your Internet service provider or carrier to report the issue for further assistance and recommendations. It’s possible that network services might be temporarily down or unstable due to some technical issues on your carrier’s end. Alternatively, you can call Samsung Support to escalate the problem if it started after installing a new software update and that the problem persisted after exhausting all possible means to fix it. An official fix patch may likely be needed.

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