How to Fix WiFi Keeps Disconnecting on Android (10 Fixes That Work)

You are halfway through a video call, or maybe just loading a recipe in the kitchen, when your Android phone quietly drops the WiFi. The icon vanishes, your mobile data takes over, and a few seconds later the WiFi comes back like nothing happened. Then it does it again. And again.

Learning how to fix WiFi keeps disconnecting on Android is not as mysterious as it feels. In most cases the culprit is one of a handful of phone settings, usually something Android changed silently during a system update, or a small issue with the saved network on your phone. Below are ten fixes, ordered from the quickest to the most thorough. Work through them in order, and test your connection after each one.

1. Turn Off the Smart Network Switch

This is the number one reason Android phones drop WiFi, and it is the first place to look. Android has a feature that watches your WiFi signal and automatically jumps to mobile data when it thinks the WiFi is too weak or unstable. Samsung calls it “Switch to mobile data,” Xiaomi calls it “WiFi Assistant,” and Realme and Oppo call it “Smart WiFi Switch.” The problem is that it often overreacts, dropping a perfectly usable connection at the first sign of a dip.

On a Samsung phone, open Settings, tap Connections, then WiFi. Tap the three-dot menu or “Intelligent WiFi,” and turn off “Switch to mobile data.” On Xiaomi, go to Settings, tap WiFi, open “WiFi Assistant,” and disable automatic network selection. On most other Android phones, you will find a similar toggle under Settings, Network and internet, WiFi preferences. If you only try one fix from this list, make it this one.

2. Forget the Network and Reconnect

Sometimes the saved profile for your network gets corrupted. Your phone holds onto a broken set of connection details and tries to use them every time, which produces the classic connect-drop-reconnect cycle. Forgetting the network and starting fresh takes about a minute.

Go to Settings, Network and internet (or Connections), then WiFi. Long-press your network name, tap Forget, and confirm. Then turn your WiFi off and back on, select the network from the available list, and type the password again. This forces your phone to build a brand-new connection profile, which clears out whatever stale data was causing the drops.

3. Restart Your Phone and Your Router

This sounds like tired advice, but a full restart of both ends of the connection fixes a surprising share of WiFi problems. Your phone’s networking components pick up small software glitches over days of uptime, and your router’s memory gets cluttered the longer it runs without a break.

Start with the phone: hold the power button and choose Restart. While it is rebooting, unplug your router from the wall, wait a full 60 seconds, and plug it back in. Give the router two or three minutes to come fully back online before reconnecting your phone. If the disconnects started after months of the router running nonstop, this alone may be all you need.

4. Keep WiFi On During Sleep

If your phone only drops WiFi when the screen is off, Android is almost certainly putting your WiFi radio to sleep to save battery. This setting is easy to miss because it lives under an advanced menu, and it sometimes gets reset by system updates.

Open your WiFi settings and look for an “Advanced” or “WiFi preferences” section. You should see an option like “Keep WiFi on during sleep” with choices such as Always, Only when plugged in, or Never. Set it to Always. While you are there, also check for any “Turn on WiFi automatically” option tied to saved locations, and make sure it is not fighting with your connection.

5. Try the Other Frequency Band

Most home routers broadcast two bands: 2.4 GHz and 5 GHz. The 2.4 GHz band reaches farther and passes through walls better, but it is crowded and prone to interference from neighbors, microwaves, and Bluetooth devices. The 5 GHz band is faster but has a shorter range, so it can drop if you move too far from the router.

If your router uses separate network names for each band, try switching to the other one. If your 5 GHz connection keeps dropping in the far corners of the house, the 2.4 GHz band may hold steady. If the 2.4 GHz band is congested in an apartment building, 5 GHz might be cleaner. When both bands share one name, you can log into the router’s admin page, usually at 192.168.1.1, and give each band its own name to test them separately.

6. Forget Other Saved Networks

Android likes to be helpful: when several saved networks are in range, it jumps between them looking for the strongest signal. If you have your home network, a neighbor’s open network, and a coffee shop network all saved, your phone may keep abandoning yours for a stronger-looking alternative and then flapping back and forth.

In your WiFi settings, open “Saved networks” and remove any networks you do not actually use regularly. Keeping just your home network and your workplace network saved is usually the sweet spot. Fewer saved networks means your phone stops auditioning alternatives and stays where you put it.

7. Check for Battery Saver and App Conflicts

Android’s battery saver mode and various battery optimization features can throttle or cut background network activity. If the disconnects started around the same time you turned on battery saver, the two are probably connected. Go to Settings, Battery, and turn battery saver off, at least temporarily, to test.

Also check your VPN app if you use one. VPN apps intercept all network traffic, and a flaky VPN server can look exactly like a WiFi problem, with connections dropping every few minutes. Temporarily disconnect the VPN and see if the WiFi stabilizes. The same goes for aggressive “phone booster” or cleaner apps, which sometimes kill the WiFi service as part of their cleanup routines.

8. Update Your Phone’s Software

Connectivity bugs do ship in Android updates, and they also get fixed in them. If your phone is sitting on a software version that is months old, you might be missing a patch for exactly this problem. On the flip side, if the disconnects started immediately after an update, the two are probably connected.

Go to Settings, System, System update, and check for updates. Install anything pending and restart the phone. If you are already fully updated and the problem started with the latest update, report it to your phone maker and keep an eye out for the next patch, and meanwhile the other fixes on this list will usually get you through.

9. Reset Network Settings

When none of the targeted fixes work, a full network settings reset wipes every saved WiFi network, Bluetooth pairing, and mobile data setting back to factory state without touching your photos, apps, or files. It is the “fresh start” option for connectivity.

On most Android phones, go to Settings, System, Reset options, and choose “Reset WiFi, mobile, and Bluetooth.” Confirm, and the phone will clear all network data. You will need to rejoin your WiFi networks and re-pair Bluetooth devices afterward, so keep your WiFi password handy. This step resolves problems caused by deeply corrupted network configurations that forget-and-reconnect cannot reach.

10. Rule Out the Router

If your WiFi keeps disconnecting on every device in the house, not just your Android phone, the problem is not your phone at all. Test by connecting a laptop, a tablet, or someone else’s phone to the same network for a while. If they all drop, look at the router.

Log into the router’s admin page and check for a firmware update, since outdated firmware is a common cause of intermittent drops. Look for signs of trouble like an overheating unit, ten or more devices fighting for bandwidth, or a router that is simply several years old and due for replacement. If the router belongs to your internet provider, call their support line, since they can see line problems on their end that you cannot.

FAQ

Why does my Android phone keep disconnecting from WiFi but my laptop does not?

The most common reason is the smart network switch feature on your phone, which moves you to mobile data at the first weak signal. Laptops do not have this behavior, so they stay connected. Turning off the feature usually solves it.

Why does my WiFi disconnect when my Android phone screen turns off?

Android is putting your WiFi to sleep to save battery. Change “Keep WiFi on during sleep” to Always in your WiFi advanced settings, and check that battery saver mode is not cutting the connection.

Can a VPN cause WiFi to keep disconnecting on Android?

Yes. A VPN that reconnects or changes servers frequently can break your WiFi connection each time it shifts. Try disconnecting the VPN for an hour and watch whether the drops stop.

Will resetting network settings delete my photos or apps?

No. A network settings reset only removes saved WiFi networks, Bluetooth pairings, and mobile network preferences. Your photos, apps, messages, and files stay exactly where they are.

Conclusion

Figuring out how to fix WiFi keeps disconnecting on Android usually comes down to one stubborn setting. For most people, turning off the smart network switch solves it in under a minute. If it does not, forgetting and rejoining the network, keeping WiFi on during sleep, and restarting the router cover almost everything else. Work through the list in order, test after each step, and only reset your network settings when the simpler fixes have not done the job. Your WiFi should be back to staying put.

Related reading: If your other phone has the same habit, see our guide on wifi keeps disconnecting on iphone. If your phone is also dying fast, read why is my iphone battery draining so fast.