Ubuntu Wi-Fi Not Working: 10 Fixes to Get Back Online

Ubuntu Wi-Fi not working is a common issue after a fresh install, a kernel update, or a settings change. Sometimes the Wi-Fi option disappears completely. In other cases, Ubuntu can see your wireless network but refuses to connect. The good news is that many wireless problems come from a small number of causes, and you can often fix them without reinstalling the system.

If your internet worked before and suddenly stopped, start with the simplest checks first. If Wi-Fi has never worked properly on your laptop, the issue may be related to drivers or hardware detection.

Why Wi-Fi Stops Working on Ubuntu

Most Ubuntu wireless issues come from one of these problems:

Wi-Fi is turned off in system settings or by a physical switch
The wireless adapter is not detected correctly
A driver is missing or not loaded
The saved network profile is broken
A recent update changed kernel or network behavior

1. Make Sure Wi-Fi Is Actually Turned On

Start with the basic check. On some laptops, Wi-Fi can be disabled with a hardware key or airplane mode setting.

Open the top-right system menu
Check whether Wi-Fi is enabled
Turn off airplane mode if it is enabled
If your laptop has a wireless key or switch, toggle it once

2. Restart the Connection

Sometimes Network Manager gets stuck after boot or resume. A simple reconnect can fix it.

Turn Wi-Fi off
Wait a few seconds
Turn Wi-Fi back on
Try reconnecting to your network

3. Forget the Network and Reconnect

If your saved Wi-Fi profile is corrupted or using the wrong password, Ubuntu may keep failing silently.

Open Wi-Fi settings
Remove the saved network
Search for it again
Enter the password manually

4. Check Whether Ubuntu Detects the Wireless Adapter

If Wi-Fi options are missing entirely, Ubuntu may not be seeing the adapter correctly.

You can open Terminal and run:

lspci

or on some systems:

lsusb

Look for entries related to wireless, WLAN, Wi-Fi, or network controller.

5. Install or Update Additional Drivers

Some wireless chips need proprietary or additional drivers to work correctly.

Open Software & Updates
Go to Additional Drivers
Check whether Ubuntu suggests a driver for your wireless device
Apply the recommended option if available

6. Reboot After Kernel or Driver Changes

If you installed drivers or received a recent update, reboot before testing again. Wireless modules often need a restart before they behave properly.

7. Test Another Network

Sometimes the problem is not Ubuntu itself. Try connecting to a phone hotspot or another router. If Ubuntu connects there, your main router settings may be the issue.

8. Check Router and Security Settings

Older wireless adapters may have trouble with certain security modes or bands.

Try the 2.4 GHz band if 5 GHz is unstable
Restart the router
Make sure the network is not hidden incorrectly
Check whether MAC filtering is enabled on the router

9. Use Official Ubuntu Wireless Troubleshooting Steps

Ubuntu’s official help pages recommend checking initial connection status, adapter detection, hardware support, and driver status in a step-by-step order. That is usually the best path if the quick fixes above do not solve the issue.

10. Boot With an Older Kernel if the Problem Started After an Update

If Wi-Fi stopped working right after a system update, a newer kernel may be the cause. You can test an older kernel from the GRUB menu and see if wireless returns.

External Help

For official Ubuntu guidance, see the Ubuntu wireless network troubleshooter, the initial connection check, and the Ubuntu Community Help page on wireless troubleshooting.

Final Thoughts

Ubuntu Wi-Fi not working usually comes down to a disabled wireless radio, missing driver, broken saved network, or post-update driver issue. Start with the simplest checks first, then move to hardware detection and driver troubleshooting if needed.