Start with the simplest fixes first

Most laptops that won't connect to WiFi are actually connected to the network but can't reach the internet, or they've straightforward forgotten the password. Before you restart your router or reinstall drivers, check three things: whether WiFi is turned on at all, whether you're entering the correct password, and whether other devices can connect.

On Windows, look for the WiFi icon in the bottom right corner of your screen — it should show signal bars, not a crossed-out symbol. On Mac, click the WiFi icon in the top right. If WiFi is off, turn it on. If it's on but you see a warning symbol, your laptop sees the network but can't reach the internet yet.

"Forgetting" the network and reconnecting is often faster than troubleshooting. On Windows, go to Settings > Network & Internet > WiFi > Manage Known Networks, find your network, and click Forget. On Mac, go to System Settings > WiFi, click Details next to your network name, then click Forget. Then reconnect and re-enter your password carefully — passwords are case-sensitive.

Key Takeaways

  • Check whether WiFi is actually turned on at the hardware level, not just in your settings — some laptops have a physical WiFi switch or keyboard shortcut that disables it.
  • If other devices connect fine but your laptop doesn't, the problem is your laptop's WiFi card or driver, not your router or internet connection.
  • Forgetting the network and reconnecting with the correct password solves most connection problems faster than restarting your router.
  • If your laptop connects but has no internet, restart your router by unplugging it for 30 seconds, then plug it back in and wait two minutes.
  • Outdated WiFi drivers on Windows can prevent connection even when the hardware works — check Device Manager to see if your network adapter has a warning symbol.

Check whether your WiFi hardware is actually on

Some laptops have a physical WiFi switch or a keyboard shortcut that turns the wireless card off completely. When the card is off, your laptop won't see any networks at all. Look for a small switch on the side or back of your laptop, or check your keyboard for a key with a WiFi symbol — it's often Fn + F2, Fn + F5, or Fn + F12, depending on your model.

On Windows, you can also check Device Manager. Press Windows Key + X and select Device Manager. Look for "Network adapters" and expand it. If your WiFi adapter has a down arrow or warning symbol next to it, the driver is disabled or has a problem. Right-click it and select "Enable device" if that option appears.

On Mac, a disabled WiFi card is less common, but you can check by going to System Settings > WiFi. If you see "WiFi: Off" at the top, click it to turn it back on. If the WiFi menu doesn't appear at all, restart your Mac — sometimes the WiFi system needs a fresh start.

Verify you're using the correct password

Your router broadcasts a network name (called the SSID) and requires a password to connect. The password is not the same as your router's admin password — it's the one you set up when you first installed the router, or the default one printed on the router's label. Passwords are case-sensitive, so "MyPassword" is different from "mypassword".

If you don't remember the password, you can reset it. Log into your router's admin panel by opening a web browser and typing your router's IP address — usually 192.168.1.1 or 192.168.0.1. You'll need the admin username and password, which are often printed on the router itself or in the manual. Once logged in, look for a WiFi settings or Wireless settings section and change the password to something you'll remember.

If you can't access the router's admin panel, you can factory reset the router by holding down the reset button (usually a small hole on the back) for 10 to 15 seconds. This erases all settings and returns the router to its defaults, so you'll have to set it up again from scratch.

Test whether the problem is your laptop or your network

The fastest way to know whether the problem is your laptop or your router is to try connecting another device. If your phone, tablet, or another laptop connects to the same WiFi network without trouble, your router and internet are working — the problem is your laptop's WiFi card or driver.

If no devices can connect, or if they connect but have no internet, the problem is your router or internet connection. Restart your router by unplugging it from power for 30 seconds, then plug it back in and wait two minutes for it to fully restart. Check that the cables going into the router are plugged in firmly — the cable from your modem should go into the port labeled "Internet" or "WAN", not into one of the regular ports.

If restarting the router doesn't work, restart your modem (the device that connects to your internet service provider). Unplug it for 30 seconds, plug it back in, and wait for the lights to stabilize. Then restart your router the same way. This order matters — the modem needs to come back online before the router tries to connect to it.

Update or reinstall your WiFi driver on Windows

Your laptop's WiFi card needs a driver — software that tells Windows how to use the hardware. If the driver is outdated or corrupted, Windows may not be able to connect even though the WiFi card itself works fine. On Windows, you can check and update the driver through Device Manager.

Press Windows Key + X and select Device Manager. Expand "Network adapters" and look for your WiFi adapter — it usually has "Wireless" or "802.11" in the name. If it has a yellow warning symbol, right-click it and select "Update driver". Choose "Search automatically for updated driver software" and let Windows search for the latest version. If an update is found, install it and restart your laptop.

If updating doesn't work, try uninstalling the driver and letting Windows reinstall it. Right-click the adapter and select "Uninstall device". Check the box that says "Delete the driver software for this device" and click Uninstall. Restart your laptop. Windows will automatically reinstall the driver when it starts up. This often fixes connection problems that updating alone doesn't solve.

Check for interference and signal strength

WiFi signals can be blocked or weakened by walls, metal objects, and other wireless devices. If your laptop is far from the router or in a different room with thick walls, the signal may be too weak to connect reliably. Try moving closer to the router and see if the connection improves. If it does, you may need to reposition your router to a more central location in your home.

Other devices that use the 2.4 GHz frequency — like microwaves, cordless phones, and baby monitors — can interfere with WiFi. If your router broadcasts on both 2.4 GHz and 5 GHz, try connecting to the 5 GHz network instead. It has a shorter range but is less likely to have interference. The 5 GHz network usually has a different name, like "YourNetworkName-5G".

You can also check your WiFi signal strength on your laptop. On Windows, open Settings > Network & Internet > WiFi > Manage Known Networks, click your network, and look at the signal strength percentage. Anything above 50% is usually stable. On Mac, hold Option and click the WiFi icon to see signal strength in dBm — anything stronger than -70 dBm is good.

Restart your laptop and router together

A full restart of both your laptop and router clears temporary problems that settings changes won't fix. Restart your laptop first by going to the Start menu (Windows) or Apple menu (Mac) and selecting Restart. Wait for it to fully shut down and start back up.

While your laptop is restarting, unplug your router from power. Wait 30 seconds, then plug it back in. Don't plug in your modem yet if you unplugged it earlier — let the router start first. Wait two minutes for all the lights on the router to stabilize, then try connecting your laptop to WiFi again.

If the connection works after this restart, the problem was likely a temporary glitch in the router or your laptop's WiFi system. If it doesn't work, move on to checking your driver or contacting your router's manufacturer for support.

Frequently Asked Questions

Why does my laptop see the WiFi network but can't connect to it?

This usually means you're entering the wrong password, or the router is having trouble communicating with your laptop's WiFi card. Try forgetting the network and reconnecting with the password written down in front of you to avoid typos. If that doesn't work, restart your router and try again.

My laptop was connected yesterday but won't connect today. What changed?

Your router may have restarted and assigned your laptop a different IP address, or the WiFi driver may have crashed. Restart your laptop first. If that doesn't work, restart your router. If the problem keeps happening, your WiFi card may be failing and may need replacement.

How do I know if my WiFi card is broken?

If other devices connect to your WiFi fine but your laptop never can, and restarting and updating drivers don't help, your WiFi card is likely failing. You can have it replaced by a repair shop, or use an external USB WiFi adapter as a temporary fix while you arrange a repair.

Should I restart my modem or my router first?

Restart your modem first, wait for it to fully start, then restart your router. The modem connects to your internet service provider, and the router connects to the modem. If the router starts before the modem is ready, it may not connect properly.

Why does my laptop keep disconnecting from WiFi?

Frequent disconnections usually point to driver problems, interference, or a weak signal. Update your WiFi driver first. If that doesn't help, try moving closer to the router or switching to the 5 GHz network if your router supports it. If disconnections happen at the same time every day, interference from another device is likely.