WiFi Keeps Disconnecting on Windows 11? 9 Fixes That Work

Your WiFi works, then it doesn't. Pages stop loading, a video call freezes, and thirty seconds later you're back online — until it happens again. On Windows 11 this is a common laptop complaint, and it is almost always fixable without spending a dollar.

The trick is order: work through these fixes cheapest and safest first, and stop as soon as your connection stays stable for a full day.

60-second triage: find where the problem lives

Before changing anything, answer one question: does the WiFi drop on every device, or only on this laptop?

Every device drops at the same time — the problem is your router or your internet provider. Skip to Fix 8.
Only this laptop drops — the problem is in Windows or the laptop itself. Start at Fix 1.
It only drops in one room — that's a range problem. Move closer to the router as a test; if the drops stop, Fix 4 is your answer.

Also note when the drops happen: every few minutes points to a driver or power setting; once or twice a day, often in the evening, points to a congested channel or an overloaded router.

Fix 1: Restart the laptop and the router — properly

A plain restart fixes more WiFi problems than any other single step, but only if you restart both ends.

Shut down the laptop completely (not Sleep, not Hibernate).
Unplug the router's power cable, wait a full 30 seconds, then plug it back in.
Wait for the router's lights to settle, then turn the laptop on and reconnect.

That 30-second drain clears the router's memory and forces a fresh channel. If drops return within a week, keep going.

Fix 2: Forget the network and reconnect

Windows stores a profile for every WiFi network you join. If that profile is corrupted — usually after a Windows update — the laptop keeps connecting to a broken configuration.

Go to Settings > Network & internet > Wi-Fi > Manage known networks.
Find your network and click Forget.
Reconnect from the WiFi list and type the password again.

Know your WiFi password before you start.

Fix 3: Run the Windows network troubleshooter

Windows 11 hides its troubleshooter in the Get Help app, but it checks the adapter state, DHCP lease, and DNS settings in one pass.

Go to Settings > System > Troubleshoot > Other troubleshooters.
Run Network and Internet.
Apply whatever it suggests, then restart the laptop.

If it reports "WiFi doesn't have a valid IP configuration," the laptop isn't getting an address from the router — Fixes 5 and 7 address that.

Fix 4: Switch WiFi bands — 2.4 GHz vs 5 GHz

Most routers broadcast two bands under one name, and Windows picks one automatically — sometimes badly. 5 GHz is faster but weaker through walls; 2.4 GHz is slower but reaches further.

If your laptop drops when you move to another room, it is probably clinging to a weak 5 GHz signal. The fix is to split the bands: log in to your router's settings (usually at 192.168.1.1 — the address is on the router's sticker), give the two bands different names, and connect to 2.4 GHz when far from the router and 5 GHz when close. If your router won't split the bands, test by moving the laptop next to the router for a day — if the drops stop, range is your problem, and an extender or mesh unit is the honest long-term fix.

Fix 5: Stop Windows turning the WiFi adapter off

This is the most common cause of WiFi that drops when the laptop idles or sleeps. Windows may, by default, switch the WiFi adapter off to save power — and some adapters never wake up properly.

Right-click Start and open Device Manager.
Expand Network adapters, right-click your WiFi adapter, and choose Properties.
Open the Power Management tab and uncheck "Allow the computer to turn off this device to save power."
Click OK and restart.

Also set the wireless adapter to Maximum performance while plugged in (Settings > System > Power & battery). Test for a full day — this fix alone resolves many "drops after sleep" cases.

Fix 6: Update or reinstall the WiFi driver

A bad driver is the second most common cause, especially after a Windows feature update. Update first; reinstall only if the update doesn't help.

Update:

In Device Manager > Network adapters, right-click your WiFi adapter and choose Update driver > Search automatically for drivers.
If Windows says you already have the best driver, check your laptop maker's support site for a newer driver for your exact model — maker drivers are often months newer.

Reinstall (only if the update didn't help):

In Device Manager, right-click the adapter and choose Uninstall device. Do not tick "delete the driver software" if it appears — you want Windows to reinstall the same driver cleanly.
Restart the laptop — Windows will reinstall the driver automatically.

If you have no internet during this step, download the driver on another device and transfer it over USB. Never use random driver-download sites — use the laptop maker or the adapter maker (Intel, Realtek, or MediaTek) only.

Fix 7: Reset TCP/IP, Winsock, and DNS

If the laptop connects but pages won't load, the network stack itself may be corrupted. This sounds technical, but it is three commands:

Right-click Start and open Terminal (Admin).
Run these one at a time, pressing Enter after each:

netsh winsock reset
netsh int ip reset
ipconfig /flushdns

Restart the laptop.

This clears corrupted settings without touching files, apps, or saved passwords, and resolves most "connected but no internet" cases that survive Fixes 1–6.

Fix 8: Fix the router side — channels and firmware

If every device drops, or the drops happen at the same time each evening, the router is the suspect.

Channel congestion: In an apartment building, dozens of routers fight over the same channels. Log in to your router and set the 2.4 GHz channel to 1, 6, or 11 (the only three that don't overlap), or turn on "Auto channel" if it is off.
Firmware: Check your router maker's site for a firmware update. Old firmware is a known cause of random disconnects, and updating is free.
Age and heat: A router that runs hot, is over five years old, and needs weekly restarts is wearing out. No software fix will save it — a basic modern replacement costs less than a single technician visit.

Fix 9: Network reset — the last resort

If nothing above worked, Windows has a full network reset. Warning: this removes all saved WiFi networks, VPN connections, and custom settings. You'll need your WiFi password again, and to set up any VPN from scratch.

Go to Settings > Network & internet > Advanced network settings > Network reset.
Click Reset now and restart when prompted.
Reconnect to your WiFi and test for a day.

Only use this after Fixes 1–8. If even a network reset doesn't help, the problem is very likely hardware.

When it's hardware (and what to do)

Suspect a failing adapter if it disappears from Device Manager entirely, if a USB WiFi adapter works perfectly while the internal one drops, or if Bluetooth fails at the same time (on most laptops, WiFi and Bluetooth share one card). A USB adapter is a cheap test: if it works flawlessly for a week, the internal card is the problem. Replacing an internal card is a repair-shop job, but a USB adapter is a perfectly good permanent workaround for under $20.

Verdict

Difficulty: Easy to Moderate
Time: 20–40 minutes for the full sequence (most people stop at Fix 1, 2, or 5)
Cost: $0 for all software fixes; under $20 if a USB adapter is needed to confirm a hardware fault
DIY or Pro: DIY — no step here requires a technician

Frequently asked questions

Why does my WiFi disconnect only on my laptop and not my phone?

Because the fault is in the laptop, not the network. Start with Fix 5 (power management) and Fix 6 (driver) — phones don't have Windows power settings or drivers, which is why they stay connected.

Does restarting my router delete my internet settings?

No. Unplugging for 30 seconds does not. A factory reset — the small pinhole button on the back — does, and you should only use it if your provider tells you to.

My WiFi drops after every Windows update. Why?

Windows updates sometimes replace a working WiFi driver with a generic one, or re-enable the power-saving setting from Fix 5. After any major update, re-check those two settings first.

Still stuck? The WiFi & Networking guides cover related problems, and the Windows Fixes hub covers broader Windows 11 issues. If every device drops together, your provider's line — not your laptop — is the place to look.