WiFi breaking after a Windows update is one of the most common complaints. The update replaces your working WiFi driver with a generic or incompatible one, or resets network settings. Here's how to fix it.
Fix 1: Toggle Airplane Mode
- Click the WiFi/Network icon in the taskbar
- Turn Airplane Mode ON
- Wait 10 seconds
- Turn Airplane Mode OFF
- This forces the WiFi adapter to reinitialize
Fix 2: Roll Back WiFi Driver
- Right-click Start → Device Manager
- Expand Network adapters
- Right-click your WiFi adapter (e.g., Intel AX211, Realtek RTL8852)
- Select Properties → Driver tab
- Click "Roll Back Driver"
- If grayed out, the driver can't be rolled back — proceed to Fix 3
Fix 3: Reinstall WiFi Driver
- In Device Manager → Network adapters
- Right-click WiFi adapter → Uninstall device → check "Delete driver software"
- Restart the computer — Windows will reinstall a basic driver
- If WiFi works → download the manufacturer's latest driver for a permanent fix
- If WiFi still doesn't work → download driver on another device via USB
Fix 4: Run Network Troubleshooter
- Open Settings → System → Troubleshoot → Other troubleshooters
- Click Run next to "Network and Internet"
- Follow the prompts
- Restart after troubleshooter completes
Fix 5: Reset TCP/IP and DNS
Open Command Prompt as Administrator (right-click Start → Terminal (Admin)) and run:
netsh winsock reset
netsh int ip reset
ipconfig /flushdns
ipconfig /release
ipconfig /renew
Restart the computer after running all commands.
Fix 6: Check WiFi Adapter Power Settings
- Open Device Manager → Network adapters
- Right-click WiFi adapter → Properties
- Go to Power Management tab
- Uncheck "Allow the computer to turn off this device to save power"
- Click OK
Fix 7: Network Reset (Nuclear Option)
- Open Settings → Network & Internet → Advanced network settings
- Click Network reset
- Click Reset now
- Computer will restart and remove/reinstall all network adapters
- You'll need to reconnect to WiFi (re-enter password)
Fix 8: Uninstall the Windows Update
- Open Settings → Windows Update → Update history
- Click Uninstall updates
- Find the most recent update → Uninstall
- Restart and test WiFi
- If WiFi works, pause updates until a fix is available
Frequently Asked Questions
Why did WiFi stop working after Windows update?
Windows updates can: (1) Replace your WiFi driver with an incompatible one, (2) Disable the WiFi adapter in Device Manager, (3) Reset network settings, (4) Corrupt the TCP/IP stack, (5) Change power management settings that put the adapter to sleep. Driver incompatibility is the #1 cause.
How do I fix WiFi after Windows 11 update?
Try in order: (1) Toggle Airplane Mode on then off, (2) Run network troubleshooter (Settings → Troubleshoot), (3) Roll back WiFi driver (Device Manager → Network adapters → WiFi → Properties → Driver → Roll Back), (4) Reset network (Settings → Network → Advanced → Network reset).
WiFi adapter disappeared after update — what do I do?
Open Device Manager → View → Show hidden devices. If the WiFi adapter appears grayed out, right-click → Enable. If missing entirely, restart the computer. If still missing, the update removed the driver — download the latest WiFi driver from your laptop manufacturer's website using Ethernet or another device.
Should I use Windows driver or manufacturer driver?
Always use the manufacturer's driver (from Dell, HP, Lenovo, etc. support site). Windows generic drivers often lack features and can be buggy. After installing the manufacturer's driver, prevent Windows from overwriting it: Device Manager → WiFi → Properties → Driver → Update Driver → 'Browse my computer' → select the downloaded driver.
How do I prevent Windows updates from breaking WiFi again?
You can't fully prevent it, but: (1) Keep a wired Ethernet adapter as backup, (2) Download your WiFi driver to a USB drive, (3) In Device Manager, right-click WiFi → Driver → set 'Do not search Windows Update for drivers', (4) Pause major Windows updates until others confirm stability.
WiFi Still Down After Update?
Our technicians can remotely fix WiFi driver issues and network settings.