Fix 'Windows Cannot Connect to This Network' Error on WiFi

Quick answer: Delete the saved WiFi network profile, then reconnect. That fixes 80% of cases. If not, flush DNS and reset the Winsock catalog.

I've seen this error hundreds of times. You're on Windows 10 or 11, your phone and other laptops connect to the router just fine, but your PC gives you the Windows Cannot Connect to This Network message when you click the network name. It's maddening. The real culprit is almost always a corrupted profile or a driver that's gotten confused after a router firmware update or a Windows patch. The OS tries to authenticate using old credentials or settings, fails, and gives up. Here's how to break that cycle.

Step 1: Forget the Network

This wipes the saved password and settings for that specific WiFi network. Windows will start fresh when you reconnect.

1. Click the network icon in the system tray (bottom-right corner).
2. Click Network & Internet settings (Windows 10) or Network & Internet (Windows 11).
3. Click WiFi in the left menu, then click Manage known networks.
4. Find your network name in the list. Click it, then click Forget.
5. Close the Settings window.
6. Click the network icon again, select your network, and re-enter the password. Expected outcome: The connection should succeed this time. If the error reappears, move to Step 2.

Step 2: Run the Network Troubleshooter

Windows built-in troubleshooting is hit-or-miss, but it catches common issues like an IP address conflict or a stuck DHCP lease. It's worth a try before we go deeper.

1. Open the Settings app (press Win + I).
2. Go to Update & Security (Windows 10) or System > Troubleshoot (Windows 11).
3. Click Additional troubleshooters (Windows 10) or Other troubleshooters (Windows 11).
4. Select Network Adapter, then click Run the troubleshooter.
5. Follow the prompts. It might ask you to restart the adapter or re-enter your password. Expected outcome: It says either "Fixed" or "Could not identify the problem." If it didn't fix it, move to Step 3.

Step 3: Flush DNS and Reset Winsock

This clears old DNS cache and resets the network stack. I've fixed stubborn connections this way more times than I can count. You need an admin command prompt.

1. Right-click the Start button and click Command Prompt (Admin) or Windows Terminal (Admin).
2. Type each of the following commands, pressing Enter after each line:

   
   ipconfig /flushdns
   netsh int ip reset
   netsh winsock reset
       

3. When all commands run successfully, close the command prompt and restart your PC.
4. After reboot, try connecting to your WiFi again. Expected outcome: If the error was caused by a corrupt network stack, this clears it and the connection works.

Step 4: Update or Roll Back the WiFi Driver

I've seen Windows updates break WiFi drivers — especially on Realtek and Intel cards. A driver mismatch with the router's firmware can trigger this exact error.

1. Right-click the Start button and select Device Manager.
2. Expand Network adapters.
3. Right-click your WiFi adapter (usually named something like "Intel Dual Band Wireless-AC 7265" or "Realtek RTL8821CE Wireless LAN 802.11ac") and select Update driver.
4. Click Search automatically for drivers.
5. If Windows finds a new driver, install it and restart. If not, try rolling back: right-click the adapter again, choose Properties, go to the Driver tab, and click Roll Back Driver (if the button isn't grayed out).
6. After the change, restart and test. Expected outcome: A driver mismatch will be resolved, and the error disappears. If it doesn't, you might need to install the driver manually from the manufacturer's website (avoid generic ones from Windows Update).

Alternative Fix: Reset the Network Adapter

If the steps above fail, a full network reset is your next move. It reinstalls all network adapters and sets Winsock back to default. Use this only if you're okay with forgetting all saved networks (not just WiFi — also VPNs and Ethernet profiles).

1. Open Settings, then Network & Internet.
2. Click Status (Windows 10) or Advanced network settings (Windows 11).
3. Click Network reset.
4. Click Reset now. Your PC will restart automatically after a few minutes.
5. After reboot, reconnect to your WiFi. Expected outcome: The error should be gone. If it persists, try the next fix.

Alternative Fix: Disable IPv6

This is a minority fix, but I've seen it work when a router's IPv6 configuration conflicts with Windows. Disable IPv6 on your WiFi adapter and see if that helps.

1. Right-click the network icon in the system tray and click Open Network & Internet settings.
2. Click Change adapter options.
3. Right-click your WiFi adapter and click Properties.
4. Uncheck Internet Protocol Version 6 (TCP/IPv6).
5. Click OK and close the window.
6. Try connecting again. Expected outcome: If IPv6 was the problem, the connection succeeds immediately.

Prevention Tip

After you get connected, stop this error from coming back. Do one thing: when Windows prompts you to install a new WiFi driver through Windows Update, pause a few days if you can. Let others report problems first. Driver mismatch is the #1 cause of this error recurring after a Windows Update. And once a month, delete networks you no longer use from the known networks list — that reduces profile corruption chances. Your WiFi will stay solid.