Why Is My Laptop Not Connecting to Wi-Fi? Common Causes and Fixes

A laptop that will not connect to Wi-Fi can be frustrating, especially when your phone, TV or other devices are working fine.

Sometimes the problem is your home internet. But very often, if only your laptop is having trouble, the issue is with the laptop itself, the saved Wi-Fi settings, the Wi-Fi adapter, the signal strength or a temporary network problem.

This guide explains why your laptop may not connect to Wi-Fi and what you can try before calling your ISP.

Quick answer

Your laptop may not connect to Wi-Fi because Wi-Fi is switched off, airplane mode is on, the saved network details are wrong, the signal is weak, the router is having issues, the Wi-Fi driver is outdated, VPN or security software is interfering, or your internet connection is down.

The first thing to check is whether other devices can connect to the same Wi-Fi network. If other devices work, the problem is probably your laptop. If nothing connects, the problem is more likely your router, fibre ONT, ISP or internet line.

First check: do other devices have internet?

Before changing laptop settings, check another device on the same Wi-Fi network.

Use your phone, tablet, smart TV or another laptop and try opening a website.

If other devices connect and work normally, your home internet is probably fine and the issue is likely on your laptop.

If no devices can connect or nothing has internet, the problem is more likely with your router, fibre ONT, ISP or internet connection.

This simple check helps you avoid blaming the wrong thing.

Wi-Fi connected vs internet working

There are two different problems that can happen.

Your laptop may fail to connect to Wi-Fi at all.

Or your laptop may connect to Wi-Fi, but still show no internet.

If it cannot connect to Wi-Fi, the problem is between your laptop and the router.

If it connects to Wi-Fi but has no internet, the laptop is connected to the router, but something is stopping it from reaching the internet.

The fix depends on which problem you have.

Common signs of laptop Wi-Fi problems

You may have a laptop Wi-Fi issue if:

• Your laptop cannot see your Wi-Fi network
• Your laptop sees the network but will not connect
• It says “can’t connect to this network”
• It asks for the Wi-Fi password again and again
• It connects but says “no internet”
• It keeps disconnecting from Wi-Fi
• Other devices work but the laptop does not
• Wi-Fi works close to the router but not in another room

Try to notice exactly what the laptop is doing. The message on the screen can help point to the cause.

1. Make sure Wi-Fi is turned on

This sounds obvious, but it is one of the easiest things to miss.

Check that Wi-Fi is switched on in your laptop settings.

Also check whether your laptop has a physical Wi-Fi button or keyboard shortcut. Some laptops use a function key to turn Wi-Fi on or off.

Look for a key with a wireless symbol. It may need to be pressed with the Fn key.

If Wi-Fi is off, your laptop may not show any nearby networks at all.

2. Check airplane mode

Airplane mode turns off wireless connections.

If airplane mode is enabled, your laptop may not connect to Wi-Fi even if the router is working properly.

On Windows, check the quick settings area near the clock and make sure airplane mode is off.

On a MacBook, check your Wi-Fi settings and make sure Wi-Fi is enabled.

After turning airplane mode off, give the laptop a few seconds to find nearby networks again.

3. Restart the laptop

A restart can fix temporary Wi-Fi problems.

Do a proper restart, not just sleep mode. Shut the laptop down or restart it from the menu.

This can clear small software issues, stuck network processes or temporary driver problems.

After restarting, try connecting to Wi-Fi again.

4. Restart your router and fibre ONT

If your laptop is not connecting, restart your router.

If you have fibre, you may also have a separate ONT. The ONT is usually the small box where the fibre cable enters your home.

Turn the router and ONT off, wait about 30 seconds, then turn them back on.

Wait a few minutes for everything to reconnect fully before testing again.

If other devices are also having issues, this step is especially important.

5. Forget the Wi-Fi network and reconnect

Your laptop saves Wi-Fi network details, including the network name, password and connection settings.

Sometimes those saved details can cause problems.

Forget the Wi-Fi network, then reconnect from scratch.

On Windows, go to your Wi-Fi settings, find the saved network, choose “forget”, then reconnect using your Wi-Fi password.

On a MacBook, remove the Wi-Fi network from known networks, then connect again.

This is a good fix if your laptop keeps saying it cannot connect to a network it used to connect to before.

6. Check the Wi-Fi password

If your router password was changed, your laptop may keep trying to connect with the old saved password.

Forget the network and enter the password again carefully.

Wi-Fi passwords are case-sensitive, so capital letters matter.

Also check whether you are connecting to the correct Wi-Fi network. In flats, estates and complexes, nearby Wi-Fi names can look similar.

7. Move closer to the router

Your laptop may not connect properly if the Wi-Fi signal is too weak.

Move closer to the router and try again.

If the laptop connects near the router but not in another room, the issue is probably Wi-Fi coverage.

This can happen if the router is too far away, hidden in a cupboard, blocked by walls, or placed in a poor spot.

In that case, the problem is not necessarily the laptop or your ISP. It may be the Wi-Fi signal in that part of the house.

8. Try the 2.4 GHz or 5 GHz Wi-Fi network

Many routers have two Wi-Fi bands: 2.4 GHz and 5 GHz.

2.4 GHz usually reaches further, but it is often slower.

5 GHz is usually faster, but it does not travel as far through walls.

If your router shows separate network names, try connecting to the other one.

If you are close to the router, try 5 GHz.

If you are further away, try 2.4 GHz.

Some laptops, especially older ones, may not support every Wi-Fi band or newer router setting.

9. Update the Wi-Fi driver

On Windows laptops, Wi-Fi problems can be caused by an outdated, broken or incorrect Wi-Fi adapter driver.

The Wi-Fi adapter is the part inside the laptop that handles wireless connections.

If your laptop keeps disconnecting, cannot connect, or says “no internet” while other devices work, the Wi-Fi driver may be part of the problem.

You can check for driver updates through Windows Update or Device Manager.

After updating, restart the laptop and test again.

10. Run the network troubleshooter

Windows has a built-in network troubleshooter that can sometimes detect and fix simple Wi-Fi issues.

It may reset the adapter, renew network settings or point out a problem.

It does not fix everything, but it is worth trying before making bigger changes.

Search for “Network troubleshooter” in Windows settings and follow the steps.

11. Turn off VPN or security software temporarily

A VPN, firewall, antivirus or security app can sometimes interfere with your connection.

If your laptop connects to Wi-Fi but websites do not load, turn off your VPN and test again.

Also check whether any security software is blocking the connection.

You do not need to uninstall anything immediately. Just test with the VPN or security tool disabled to see if it changes the result.

12. Check if your laptop works on another Wi-Fi network

Try connecting your laptop to another Wi-Fi network, such as a phone hotspot or another home network.

If the laptop works on another network, the problem may be your router, Wi-Fi settings or home network.

If the laptop does not work on any Wi-Fi network, the issue is more likely with the laptop, Wi-Fi adapter, driver or software settings.

This is one of the best ways to separate a laptop problem from a home Wi-Fi problem.

13. Try Ethernet if your laptop supports it

If your laptop has an Ethernet port, plug it directly into the router with a network cable.

If Ethernet works but Wi-Fi does not, your internet connection is probably working and the problem is likely the laptop Wi-Fi, router Wi-Fi or wireless signal.

If Ethernet also does not work, the issue may be with the router, ISP, fibre ONT or internet line.

Many newer laptops do not have Ethernet ports, but you can use a USB Ethernet adapter if needed.

14. Your router settings may not support the laptop

Sometimes a router setting can stop an older laptop from connecting.

This can happen with certain Wi-Fi security modes, newer Wi-Fi standards or band settings.

If the laptop is older and all newer devices connect fine, the router may be using settings the laptop does not handle well.

In that case, you may need to check the router Wi-Fi settings or ask your ISP for help.

Do not change advanced router settings unless you know what they do or can change them back.

15. Your ISP may have a problem

If your laptop connects to Wi-Fi but there is no internet, and every other device also has no internet, your ISP or fibre line may be the problem.

Possible causes include:

• Fibre line fault
• ISP outage
• LTE or 5G signal problem
• Account issue
• Router issue
• ONT problem
• Area network problem

Check the router and ONT lights, restart the equipment, and check your ISP’s outage notices.

If nothing works on any device, contact your ISP.

If only your laptop will not connect

If every other device works, try these steps:

• Restart the laptop
• Make sure Wi-Fi is on
• Turn airplane mode off
• Forget the Wi-Fi network and reconnect
• Check the Wi-Fi password
• Move closer to the router
• Try another Wi-Fi band
• Turn off VPN
• Run the network troubleshooter
• Update the Wi-Fi driver
• Test on another Wi-Fi network

If the laptop fails on multiple Wi-Fi networks, the laptop itself may need further troubleshooting.

If no devices can connect

If nothing can connect or nothing has internet, try these steps:

• Restart the router
• Restart the fibre ONT
• Check the router lights
• Check cables and power
• Check your ISP account
• Check for area outages
• Test with Ethernet if possible
• Contact your ISP if the issue continues

In this case, the laptop is probably not the main problem.

How to test after fixing the connection

Once your laptop is connected again, run a speed test.

Test close to the router first.

Then test again in the room where you normally use the laptop.

If the speed drops a lot in that room, your Wi-Fi coverage may be weak there.

If your download and upload speeds look fine but the laptop still feels laggy, also look at ping, jitter and loaded ping.

Those results can explain problems with video calls, gaming and general responsiveness.

When should you contact your ISP?

Contact your ISP if:

• No devices have internet
• The router or ONT shows a fault light
• Ethernet also does not work
• The connection keeps dropping on all devices
• Restarting the router and ONT does not help
• Your package is active but the line seems down

When contacting your ISP, tell them whether the issue is only on your laptop or on all devices.

That detail matters.

If only your laptop has the problem, your ISP may not be able to fix it because the internet line itself may be working.

Final thoughts

If your laptop is not connecting to Wi-Fi, start with the simple checks first.

Make sure Wi-Fi is on, airplane mode is off, and the password is correct. Then restart the laptop, forget the network and reconnect.

If other devices work, the problem is probably your laptop, Wi-Fi settings, driver or signal strength.

If no devices work, the issue is more likely your router, fibre ONT, ISP or internet line.

Once your laptop is connected again, use Lekker Speed Test to check your download speed, upload speed, ping, jitter and loaded ping.