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Samsung Galaxy Wi-Fi keeps disconnecting? 6 things to check

8 fixes, 8 with a real screenshot from our Galaxy A57 5G (One UI 8.5) and Galaxy S26 (One UI 9.0). Try them in order.

By · Updated 15 Nov 2026 · 4 min read

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Quick answer

Open Settings, Connections, Wi-Fi, the three dots and Intelligent Wi-Fi, and turn off Switch to mobile data and Switch to better Wi-Fi networks to see whether they cause the drops. If not, forget the network and join again, then reset Wi-Fi and Bluetooth settings.

Wi-Fi that drops in the middle of a call or a download is maddening, and the router usually gets the blame. Often, though, the phone is leaving on purpose: Samsung's Intelligent Wi-Fi settings can move a Galaxy to mobile data or to another saved network. Check those switches first, because restarting the router will not stop a phone that chooses to switch.

Step-by-step guide

Follow these steps in order. After each step, check if it works.

0 of 8 steps
  1. 1

    Open Connections

    Open Settings and tap Connections.

    Android screenshot: Open Connections
  2. 2

    Tap Wi-Fi

    Tap the word Wi-Fi, not the switch.

    Android screenshot: Tap Wi-Fi
  3. 3

    Tap the three dots, then Intelligent Wi-Fi

    The three dots are at the top right of the Wi-Fi page; Samsung calls them More options. On our Galaxy S26 the menu lists Wi-Fi Direct, Intelligent Wi-Fi, Advanced settings and Contact us. Tap Intelligent Wi-Fi.

    Android screenshot: Tap the three dots, then Intelligent Wi-Fi
  4. 4

    Check Switch to mobile data

    Samsung says that when this is on, the phone moves to mobile data any time the Wi-Fi connection becomes unstable. Switch it off to test whether it causes the drops. Our Galaxy S26 has no SIM, so the row was greyed out with Insert a SIM card to use this feature.

    Android screenshot: Check Switch to mobile data
  5. 5

    Check Switch to better Wi-Fi networks

    Samsung says this moves the phone to a saved network that is faster or more stable, and only while the screen is off. It can still move you off your main network. On ours it was on, with When screen is off underneath. Switch it off to test whether it causes the drops.

    Android screenshot: Check Switch to better Wi-Fi networks
  6. 6

    Check your saved networks

    Tap the three dots, then Advanced settings, then Manage saved Wi-Fi networks. It lists every network your phone remembers.

    Android screenshot: Check your saved networks
  7. 7

    Forget the network and join again

    Select the network and tap Delete at the bottom, then join it again from the Wi-Fi page with its password. We did not delete ours.

    Android screenshot: Forget the network and join again
  8. 8

    Reset Wi-Fi and Bluetooth settings

    Samsung gives this path: Settings, General management, Reset, Reset Wi-Fi and Bluetooth settings, then Reset settings. On our Galaxy S26 it is the third reset option, below Reset mobile network settings. Steps: how to reset network settings on a Samsung Galaxy phone.

    Android screenshot: Reset Wi-Fi and Bluetooth settings

If you do not see this option

  • Some Intelligent Wi-Fi switches are greyed out On our Galaxy A57, with Wi-Fi off, Switch to mobile data, Turn Wi-Fi on automatically and Detect suspicious networks were greyed out, while Switch to better Wi-Fi networks was not. Samsung's steps turn Wi-Fi on first. Source: Connection options for your Galaxy phone or tablet
  • No list of saved networks Saved networks are under the three dots, Advanced settings, Manage networks. On our Galaxy A57 that row was greyed out while Wi-Fi was off, as in the saved networks step.

If this does not work

  • Still dropping: forget the network Samsung says to press and hold the network, tap Forget network, then select it again and reconnect. We could not show this on our Galaxy A57, which had Wi-Fi off.
  • Every network drops Samsung suggests the Wi-Fi test in Samsung Members: Support, Get started, Wi-Fi. It also suggests restarting the phone and checking for a software update. One more cause Samsung names is a recently installed app: hold Power off in the power menu until Safe mode appears, tap it, and if Wi-Fi stays connected there, remove recent apps one at a time, newest first, then restart (Samsung US). Once it is sorted, the Wi-Fi icon simply stays in the status bar and mobile data no longer takes over.

Good to know

If only one network drops, the router is the likelier culprit. Samsung suggests restarting that router by its power cable, checking that the network shows up on other devices, and making sure the router's firmware is up to date (Samsung US).

Detect suspicious networks, further down the Intelligent Wi-Fi page, warns you if anything dodgy is spotted on the Wi-Fi you're using.

About this guide

Device
Android
Shown on
Samsung Galaxy A57 5G (SM-A576B), One UI 8.5, Android 16, Samsung Galaxy S26 (SM-S942N, Korean model), One UI 9.0, Android 17 (build CP2A.260605.016.S942NKSU5BZJB)
App
Settings
Real screenshots
8 of 8 steps
What we did
Observed: looked at each screen, changed nothing
Checked
November 2026
Sources
2 official, linked below

The screenshots are from a Samsung Galaxy S26 with One UI 9.0 and Android 17, in Dark mode, apart from step 1, from our Galaxy A57 with One UI 8.5. Other Galaxy phones on One UI 8.5 and 9 use similar menus; on older One UI versions a few names and positions differ. We only looked at these screens on our phones and changed nothing.

Sources

Links checked November 2026. Menus and features can change with updates.

Related guides

How to reset network settings on a Samsung Galaxy phoneHow to turn 5G on or off on a Samsung Galaxy (network mode)How to reset network settings on a Google Pixel (Android 17)How to reset network settings on a OnePlus (OxygenOS 16)How to see Wi-Fi data usage by app on a OnePlus (OxygenOS 16)How to add an eSIM on a Samsung Galaxy

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