Android WiFi Keeps Disconnecting? 7 Fixes (2026)

Android · WiFi · Updated August 2026

Your phone shows full WiFi bars, then the page stops loading. The icon flickers, the connection comes back, and thirty seconds later it happens again. Or it holds fine while you are using it and drops the moment the screen goes off. Nothing on the phone is damaged and nothing gets deleted — this is almost always a settings or power-management problem, and it is usually fixed in under ten minutes.

The single most useful thing you can do before changing any setting is work out which side is failing — your phone, or the WiFi itself. Almost every wasted hour of WiFi troubleshooting comes from skipping that question. Fix 1 answers it in about thirty seconds.

Reality check: a phone that keeps dropping WiFi is very rarely broken hardware. The common causes are a saved network profile that has gone stale, battery optimisation putting the WiFi radio to sleep, an IP address clash on the router, a weak or congested signal, or router firmware that needs a reboot. Work through them in order and stop as soon as it holds.

⚡ TL;DR — The First Two Minutes

1. Check whether other devices on the same WiFi are also dropping.
2. Turn airplane mode on for ten seconds, then off.
3. Unplug the router for thirty seconds and plug it back in.

If that holds, you are done. If not, keep reading.

Work Out Which Pattern You Have

The way it drops tells you where to start. Spend a minute watching the behaviour before you change anything.

Short drops, reconnects on its own

• Two or three seconds of nothing, then it is back.
• Worse when the screen has been off for a while.
• Happens on more than one WiFi network.
• Other devices on the same WiFi are fine.

Start at Fix 4, then Fix 3.

Long drops, or “connected, no internet”

• Stays disconnected until you reconnect by hand.
• Full bars but nothing loads.
• Other devices on the same WiFi struggle too.
• Only happens on one particular network.

Start at Fix 2, then Fix 5.

Table of Contents

1. Find out whether it is the phone or the WiFi
2. Restart the phone and the router properly
3. Forget the network and reconnect
4. Stop Android putting the WiFi radio to sleep
5. Fix the IP address and DNS settings
6. Update Android, and reset network settings
7. Safe mode, then factory reset
8. Quick reference — all 7 fixes
9. Why Android drops WiFi
10. The order to follow
11. Frequently asked questions

The 7 Fixes, in the Order That Works

1Find Out Whether It Is the Phone or the WiFi

DO THIS FIRST NO DATA LOSS 2 min

This is not really a fix — it is the test that tells you which half of the guide you need. It takes thirty seconds and saves you from working through six phone fixes when the router was at fault all along.

1. Check another device on the same WiFi — a laptop, a tablet, someone else’s phone. If it drops too, the problem is the router or the internet line, not your phone. Go straight to Fix 2 and then contact your provider.
2. Connect your phone to a different WiFi — a friend’s, a café’s, or your own mobile hotspot from another phone. If it holds perfectly there, your phone is fine and the fault is with your home network.
3. Turn mobile data off completely while testing. Android will silently fall back to mobile data when WiFi struggles, which hides the problem and makes it look intermittent.
4. Note when it drops. Only when the screen is off? Only in one room? Only during calls? Only on 5 GHz? Each answer points at a different fix below.
5. Move next to the router and watch for a few minutes. If it is rock solid there and drops elsewhere in the house, this is a coverage problem, not a software one — no setting on the phone will fix a weak signal.

✅ What you learn: phone problem → continue with Fix 3, 4, 6, 7. Network problem → Fix 2 and Fix 5, and look at the router itself.

2Restart the Phone and the Router Properly

HIGH IMPACT NO DATA LOSS 5 min

Obvious, but people do it wrong. Tapping the WiFi toggle is not a restart, and a router that has been running for eight months will have a wireless stack that needs clearing.

1. Restart the phone fully — hold the power button, choose Restart, and let it boot completely. Do not just lock and unlock it.
2. Unplug the router at the wall for a full 30 seconds. Do not use the reset pinhole — that wipes the router’s configuration. Just pull the power.
3. Plug it back in and wait two full minutes for all the lights to settle. Reconnecting while it is still booting gives you a bad connection that looks like a fault.
4. If you have a separate modem, power both off, then bring the modem up first and wait for it to sync before powering the router.
5. Try the other band. If your router broadcasts separate 2.4 GHz and 5 GHz names, connect to the other one. 5 GHz is faster but has much shorter range and does not pass through walls well — if 2.4 GHz is stable and 5 GHz is not, you have a range problem.

Note: if the router needs restarting more than once a month to stay usable, it is failing or overheating. Check it is not in a cupboard or on top of a TV, and if it is more than five years old, consider replacing it.

✅ Verify it worked: stream a video for five minutes without touching the phone. No buffering pause means the connection held.

3Forget the Network and Reconnect

HIGH IMPACT NO DATA LOSS 4 min

Android saves a profile for every WiFi network you join — the password, the security type, the IP method. That profile can go stale, especially after a router firmware update or a password change. Forgetting it makes Android build a clean one.

Before you start: make sure you know the WiFi password. Once you forget the network, the phone will ask for it again.

1. Open Settings → Network & internet → Internet (on Samsung: Settings → Connections → Wi-Fi).
2. Tap the gear icon next to your network’s name — not the name itself.
3. Tap Forget and confirm.
4. Turn WiFi off, wait ten seconds, turn it back on.
5. Tap your network in the list, enter the password, and connect.
6. If the network does not appear at all, turn airplane mode on for ten seconds and off again — that restarts the radio.

Also worth trying: on the same network settings screen, look for Privacy or MAC address type and switch it from Randomised MAC to Device MAC. Some routers — particularly ones with MAC filtering or device limits switched on — do not cope with the rotating address Android uses by default, and this shows up as a repeating reconnect loop.

✅ Verify it worked: leave the phone connected and idle for twenty minutes, then pick it up and load a page immediately. It should load without a pause.

4Stop Android Putting the WiFi Radio to Sleep

HIGH IMPACT NO DATA LOSS 6 min

If your drops happen when the screen is off, or your messages all arrive in a burst when you unlock the phone, this is your fix. Battery optimisation is doing exactly what it was designed to do — and being too aggressive about it.

1. Turn off battery saver. Settings → Battery → Battery Saver. It throttles background connectivity by design, and on some phones it disconnects WiFi entirely when the screen is off.
2. Turn off adaptive or automatic network switching. Look for Adaptive connectivity, Switch to mobile data, Auto switch to mobile network, or Smart network switch. These hand the connection to mobile data the moment WiFi weakens, which feels exactly like a dropout — and quietly uses your data allowance.
3. Turn off Wi-Fi scanning while idle. Settings → Location → Location services → Wi-Fi scanning, and switch it off. Constant scanning for nearby networks can interrupt the connection you are already on.
4. Exempt the apps that matter from battery optimisation: Settings → Apps → [app] → Battery → Unrestricted. Do this for messaging and calling apps only.
5. On Xiaomi, OnePlus, Oppo, Vivo and Realme phones, check the manufacturer’s own battery manager as well — it usually sits separately under Settings → Battery → App battery saver and is far more aggressive than Android’s own. Set your important apps to No restrictions.
6. Turn off Wi-Fi sleep policies if your phone still offers one under advanced WiFi settings, and set it to Always.

Note: the trade-off is real — expect slightly more battery drain overnight. If the drops stop, turn the settings back on one at a time to find which one caused it.

✅ Verify it worked: leave the phone untouched for an hour, then check whether messages arrived while it was idle rather than all at once when you unlocked it.

5Fix the IP Address and DNS Settings

MEDIUM IMPACT NO DATA LOSS 6 min

If the phone shows full bars and “connected” but nothing loads, the WiFi link is fine and the problem is one step further up — the phone has no usable address, or cannot resolve names.

1. Open your network’s settings (gear icon next to the name) and find IP settings.
2. If it says Static, change it to DHCP. A fixed address left over from an old setup will clash the moment the router hands the same one to another device.
3. Check the IP the phone received. Go to Settings → About phone → Status (Samsung: Settings → About phone → Status information). If the address starts with 169.254, the phone never got one from the router — restart the router and try again.
4. Turn off Private DNS: Settings → Network & internet → Private DNS → Off. A private DNS hostname that has stopped resolving looks exactly like a dead internet connection.
5. If several devices drop at once, the router may have run out of addresses. In the router’s admin page, widen the DHCP range or shorten the lease time.
6. Check the router is not blocking the phone — look for MAC filtering, Access control, Parental controls, or a connected-device limit, and make sure your phone is not on a blocked list or a schedule.

⚠ Warning: ignore any guide that tells you to dial a hidden code to open WiFi diagnostics. Codes like that are either made up or drop the phone into a service mode that is difficult to exit. Everything you need is in Settings → About phone → Status.

✅ Verify it worked: the phone’s IP starts with your router’s prefix (usually 192.168.) and pages load immediately after connecting.

6Update Android, and Reset Network Settings

MEDIUM IMPACT SAVED NETWORKS ERASED 30 min

WiFi bugs get patched, and a network reset clears every stored network setting at once — which fixes problems you would otherwise have to hunt for individually.

Step A — update everything

1. Settings → System → System update (Samsung: Settings → Software update) and install anything waiting. Download over WiFi if you can, and never interrupt it.
2. Open the Play Store → profile picture → Manage apps & device → Update all.
3. Update Google Play services and Android System WebView from the Play Store as well.
4. Restart the phone and give it a day before judging the result.

⚠ Before the reset — write down your WiFi passwords. A network reset removes every saved WiFi network and password, every Bluetooth pairing, and your mobile data settings. Nothing else on the phone is touched — no photos, no apps, no messages — but you will have to reconnect everything by hand, including your car and headphones.

Step B — reset network settings

1. Go to Settings → System → Reset options → Reset Wi-Fi, mobile & Bluetooth (Samsung: Settings → General management → Reset → Reset network settings).
2. Confirm, and let the phone restart.
3. Reconnect to your WiFi and enter the password.
4. Re-pair any Bluetooth devices you use.

✅ Verify it worked: the connection holds for a full day of normal use, including overnight with the screen off.

7Safe Mode, Then Factory Reset

LAST RESORT BACK UP FIRST 1 hr+

Safe mode is free and erases nothing, so always do it first. It starts Android with every app you installed switched off, which tells you whether an app is responsible — most often a VPN, a network-monitoring tool, an ad blocker, or a “WiFi booster” app.

Step A — safe mode (nothing is erased)

1. Hold the power button, then press and hold Power off on screen until Safe mode appears. Tap it.
2. Connect to WiFi and use the phone normally for an hour.
3. If the connection is stable in safe mode, an installed app is the cause. Restart normally and uninstall recent apps one at a time — starting with any VPN or network tool.
4. If it still drops in safe mode, no app is to blame. Do not reset — the problem is the network or the hardware. Go back to Fix 1 and test on a different WiFi.

⚠ A factory reset erases everything on the phone — photos, messages, apps, accounts and downloads — and cannot be undone. Only do it if safe mode showed an app was at fault and you could not identify which one. Back up first, then open the backup and confirm your photos are actually in it before you go any further.

Step B — factory reset (erases everything)

1. Back up: Settings → Google → Backup → Back up now, and let Google Photos finish uploading.
2. Write down your Google account email and password. Android asks for them after the reset, and the phone stays locked without them.
3. Move anything the backup does not cover — chat history, offline files, and above all authenticator apps, which must be transferred before the reset or you may lose access to your own accounts.
4. Settings → System → Reset options → Erase all data (factory reset), and confirm.
5. Set the phone up and connect to WiFi before restoring any apps. If it is stable while empty and drops once your apps come back, one of them is the cause.

✅ Verify it worked: a freshly reset phone holds WiFi through a full day. If it does not, the fault is the network or the WiFi hardware, and a repair shop is the next step.

Quick Reference — All 7 Fixes

#	Fix	Impact	Time	Data safe?	Best for
1	Phone or WiFi?	Do this first	2 min	Yes	Knowing which fixes to skip
2	Restart phone and router	High	5 min	Yes	All devices dropping
3	Forget and reconnect	High	4 min	Yes	One network misbehaving
4	Stop the radio sleeping	High	6 min	Yes	Drops when the screen is off
5	IP and DNS settings	Medium	6 min	Yes	Connected but no internet
6	Update, then network reset	Medium	30 min	Saved networks erased	Started after an update
7	Safe mode, then reset	Last resort	1 hr+	Back up first	Nothing else worked

Why Android Drops WiFi

Four causes account for nearly all of it, and they are easy to tell apart once you know what each one looks like.

Power management

Android turns the WiFi radio down when the screen is off to save battery, and manufacturers layer their own, more aggressive battery managers on top. When those settings are tuned too tightly the radio sleeps deeply enough that the router considers the phone gone and drops it. The signature is obvious: perfect while you are using it, dropped when you are not, and a flood of delayed notifications when you unlock.

A stale saved profile

The stored network profile keeps the password, security type and address method. A router firmware update, a channel change, or a security setting change can leave that profile out of date, so the phone keeps attempting a handshake that will never succeed. It affects one network only and follows you nowhere else.

Addressing

The WiFi link can be perfectly healthy while the phone has no usable IP address, or has one that clashes with another device, or is pointed at a DNS server that no longer answers. This is the “full bars, nothing loads” case, and no amount of restarting the WiFi toggle will fix it.

Signal and congestion

5 GHz is fast but does not travel far or pass through walls well, so a phone at the edge of its range will keep hopping between bands or losing the connection outright. In a block of flats, dozens of neighbouring networks on the same 2.4 GHz channels create enough interference to cause the same symptom. Neither is a software fault, and neither is fixed from the phone — move closer, change the router’s channel, or add a second access point.

Common Mistakes That Make It Worse

• Installing a “WiFi booster” app. An app cannot change the radio power or the antenna. It runs in the background, shows ads, and sometimes interferes with the connection it claims to improve.
• Using the reset pinhole on the router. That wipes the entire configuration, including your WiFi name and password. Pull the power instead.
• Setting a static IP on the phone. It will clash the moment the router hands the same address to something else. Use a DHCP reservation in the router if you need a fixed address.
• Leaving mobile data on while testing. Android quietly falls back to mobile data, which hides the problem and burns your allowance.
• Jumping straight to a factory reset. Safe mode gives you the same answer and erases nothing.
• Blaming the phone for a coverage problem. If it is solid next to the router and drops two rooms away, no setting will help — you need better coverage.

✅ The Order to Follow

1. Do other devices drop too? Then it is the router or the line, not the phone — Fix 2.
2. Does it hold on a different WiFi? Then your phone is fine and your home network is the problem — Fix 5.
3. Does it only drop when the screen is off? Battery optimisation — Fix 4.
4. Only on one network? Forget it and reconnect — Fix 3.
5. Full bars but nothing loads? Addressing or DNS — Fix 5.
6. Started right after an update? Update everything, then reset network settings — Fix 6.
7. Still dropping? Run safe mode for an hour before you even consider a factory reset — Fix 7.

Frequently Asked Questions

Why does my WiFi drop every time the screen turns off?

Battery optimisation. Turn off battery saver, switch off adaptive or automatic network switching, and set your important apps to unrestricted battery use. On Xiaomi, OnePlus, Oppo, Vivo and Realme phones, check the manufacturer’s own battery manager too — it is separate from Android’s and much stricter. See Fix 4.

My phone says “Connected, no internet” with full bars. What does that mean?

The WiFi link itself is working, but the phone has no usable IP address or cannot resolve names. Set IP settings back to DHCP, turn off Private DNS, and restart the router. See Fix 5.

Do I need to root my phone or use ADB commands to fix this?

No. Every genuine fix for WiFi dropouts is in the Settings app. Rooting voids the warranty, blocks banking apps, and editing kernel or firmware files can leave the phone unable to boot. Ignore any guide that suggests it for a connection problem.

Should I use a static IP on my phone?

Generally no — leave the phone on DHCP. If you want a fixed address, set a DHCP reservation in the router instead. A static address configured on the phone will clash the moment the router hands the same one to something else.

Will resetting network settings delete my photos or apps?

No. It removes saved WiFi networks and passwords, Bluetooth pairings and mobile data settings only. Everything else is untouched. A factory reset is the one that erases everything — the two are often confused.

Do WiFi booster and signal amplifier apps work?

No. An app cannot increase the power of the radio or change the antenna. They run in the background, show ads, and in some cases interfere with the connection they claim to improve.

My WiFi only drops on 5 GHz. Should I just use 2.4 GHz?

That is a perfectly reasonable answer if the speed is enough for you. 5 GHz is faster but has much shorter range. If you need the speed across the whole house, the real fix is a mesh system or a second access point, not a phone setting.

Related Fixes

• Router dropping too? Router Keeps Disconnecting — 7 Proven Fixes
• Phone running hot? Android Phone Overheating — 7 Proven Fixes
• On an iPhone instead? iPhone WiFi Keeps Disconnecting — 11 Fixes
• On a PC? Fix “No Internet, Secured” on Windows 11

Connection holding again?

Bookmark TechFix Radar for no-nonsense Android, iPhone, Windows and networking fixes — clear steps, no filler.

Start Here More Android Fixes