Check Your WiFi Network and Password First

The most common reason a PC won't connect to WiFi is a typo in the password or connecting to the wrong network. Open your WiFi settings and look at the list of available networks — make sure you're selecting the correct one. Your network name (called the SSID) should match what's printed on your router or what you set it to yourself.

If you're entering the password, type it slowly and check that Caps Lock is off unless your password actually uses capital letters. WiFi passwords are case-sensitive, meaning uppercase and lowercase letters are treated as different characters. If you're not sure what your password is, you can usually reset it by logging into your router's admin panel — the address is typically printed on the router itself, often something like 192.168.1.1.

Try forgetting the network and reconnecting from scratch. In Windows 11, go to Settings > Network & Internet > WiFi > Manage Known Networks, find your network, and click Forget. Then reconnect by selecting the network again and entering the password fresh.

Key Takeaways

  • Restart your router by unplugging it for 30 seconds, then plug it back in and wait two minutes for it to fully boot.
  • Check that your PC's WiFi adapter is turned on — look for a physical switch on your laptop or check Device Manager for a disabled network adapter.
  • Move your PC closer to the router to rule out a signal strength problem, since walls and distance weaken WiFi signals significantly.
  • Update your network adapter drivers through Device Manager or your PC manufacturer's support website, as outdated drivers cause connection failures.
  • If other devices connect fine but your PC doesn't, the problem is usually your PC's adapter or settings, not your router or internet service.

Restart Your Router and Your PC

A restart fixes most WiFi problems because it clears temporary errors in both your router and your PC's network settings. Unplug your router's power cable, wait 30 seconds, then plug it back in. Wait two full minutes for the router to boot up completely — you'll see lights stop blinking and stabilize.

While the router restarts, restart your PC as well. A fresh start clears out network connection attempts that may have gotten stuck. After both devices are back on, try connecting to WiFi again. This straightforward step solves the problem roughly half the time.

Check That Your WiFi Adapter Is Actually On

Some laptops have a physical WiFi switch or a keyboard shortcut that turns the adapter off. Look for a small switch on the side or bottom of your laptop, or check your keyboard for a key with a WiFi symbol — it's often Fn + F2 or similar, depending on your brand. Press it to toggle WiFi back on.

If you don't see a physical switch, check Windows settings. Go to Settings > Network & Internet > WiFi and make sure the WiFi toggle is switched on. If it's already on but grayed out, your adapter may be disabled in Device Manager. Right-click the Start button, select Device Manager, expand Network Adapters, and look for your WiFi adapter (usually something like "Wireless" or "802.11"). If it has a down arrow next to it, right-click and select Enable.

Move Closer to Your Router and Check Signal Strength

WiFi signals weaken with distance and through walls. If your PC is far from the router or separated by multiple walls, you may be at the edge of the signal range. Move your PC within 10 to 15 feet of the router and try connecting again. If it works at close range, your problem is signal strength, not a broken adapter.

Check your signal strength in Windows by clicking the WiFi icon in your system tray. If the signal shows as weak (one or two bars), move the router to a more central location or move your PC closer. Routers work best when placed in an open area, away from metal objects and away from other electronics like microwaves or cordless phones, which can interfere with the 2.4 GHz band that many routers use.

Update Your Network Adapter Drivers

Outdated or corrupted network adapter drivers prevent your PC from connecting even when the hardware works fine. Open Device Manager by right-clicking the Start button and selecting it from the menu. Expand Network Adapters and right-click your WiFi adapter, then select Update Driver.

Choose "Search automatically for updated driver software" and let Windows search for the latest version. If Windows finds an update, install it and restart your PC. If no update is found, visit your PC manufacturer's support website (Dell, HP, Lenovo, etc.), search for your specific model number, and read the latest network adapter driver from there. Install it manually and restart.

If your adapter appears with a yellow exclamation mark or "Unknown Device" label, the driver is definitely missing or corrupted. read the driver from your manufacturer's site and install it when ready.

Check for Windows Network Troubleshooting

Windows has a built-in network troubleshooter that can catch problems you might miss. Right-click the WiFi icon in your system tray and select Troubleshoot Problems. Let it run through its checks — it often finds and fixes issues automatically, like resetting your network settings or restarting your adapter.

If the troubleshooter finds a problem, follow its recommendations. If it doesn't find anything but you still can't connect, note what it says and move to the next step. The troubleshooter is useful but not perfect, so a clean result doesn't always mean your connection is fine.

Rule Out Your Internet Service and Router

Before assuming your PC is broken, check whether other devices can connect to the same WiFi network. Try connecting a phone, tablet, or another computer. If other devices connect without trouble, the problem is specific to your PC — likely a driver, adapter, or settings issue. If no devices can connect, the problem is your router or internet service, not your PC.

If other devices can't connect either, restart your router again and check that your internet service is actually on. Look at your router's lights — you should see a light indicating internet connection (often labeled WAN or Internet). If that light is off or red, contact your internet service provider. If the light is on but devices still can't connect, your router may need a factory reset or replacement.

Frequently Asked Questions

Why does my PC say "can't connect to this network"?

This message usually means you entered the wrong password, your PC's adapter is having trouble with that specific network, or your router is blocking your device. Try forgetting the network and reconnecting with the password written down in front of you. If that doesn't work, restart your router and try again.

My PC connects to WiFi but the internet doesn't work. What's different?

Connecting to the network and having internet access are two separate things. You may be connected to the router but the router itself may not have internet. Check another device — if it also has no internet, restart your router and check your modem. If only your PC has no internet, try releasing and renewing your IP address by opening Command Prompt as administrator and typing "ipconfig /release" then "ipconfig /renew".

My WiFi worked yesterday but stopped today. What changed?

Something either updated on your PC or your router had a problem. Restart both devices first. If that doesn't work, check whether Windows installed updates overnight — restart your PC if updates are pending. If your router lost power or crashed, restart it. If you recently updated your network drivers, try rolling back to the previous version in Device Manager.

Should I use 2.4 GHz or 5 GHz WiFi?

5 GHz is faster but has shorter range and doesn't go through walls as well. 2.4 GHz is slower but reaches farther. If your router broadcasts both, try connecting to 5 GHz first — if you get weak signal or frequent disconnects, switch to 2.4 GHz. Most routers let you choose which band to connect to in your WiFi network list.

How do I know if my WiFi adapter is broken?

If your adapter appears in Device Manager with a yellow exclamation mark, it's likely broken or has a serious driver problem. If it doesn't appear in Device Manager at all, it may be physically disconnected or failed. If it appears normally but you still can't connect after trying all these steps, the adapter hardware may be failing and you may need to replace it or have it serviced.