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A network adapter is one of those Windows components that I usually do not think about until the internet suddenly stops working. Everything can look normal at first, but websites refuse to open, WiFi disappears, or Windows shows a message saying that no network adapter is available. If you are facing the network adapter not working in Windows problem, there is usually a way to fix it without replacing your computer or doing a complete Windows installation.
I have found that network adapter problems can happen for several reasons. Sometimes the driver is outdated or corrupted. In other cases, the adapter is disabled, Windows has a temporary network problem, or a recent update has changed something in the system. Hardware problems are also possible, but I would always check the software and Windows settings first.
In this guide, I will explain the most useful ways to fix a network adapter not working in Windows. I recommend trying the simple solutions first and moving toward the more advanced fixes only when necessary.
Restart Your Computer First
Before changing drivers or running commands, restart your computer.
It sounds like a basic suggestion, but Windows network services can occasionally stop responding correctly. A temporary system error can make the network adapter appear unavailable even though the hardware is perfectly fine.
Save your work, restart Windows, and check whether WiFi or Ethernet starts working again.
If the problem appeared after your computer woke up from sleep or after installing an update, restarting is especially worth trying.
Check If the Network Adapter Is Disabled
One of the first things I check when WiFi suddenly disappears is whether the network adapter has been disabled.
Open Windows Settings and go to Network and Internet. Look for the advanced network settings and open the section where Windows displays your network adapters.
If your WiFi or Ethernet adapter is disabled, enable it and wait a few seconds.
You can also check through Control Panel. Open Network Connections and look for your wireless or Ethernet connection. If the adapter appears disabled, right click it and select Enable.
After enabling it, try connecting to your network again.
Check Device Manager
Device Manager is one of the most useful tools for diagnosing a network adapter problem in Windows.
Right click the Start button and open Device Manager. Expand the Network Adapters section.
You should normally see your wireless adapter, Ethernet adapter, or both.
If you see a yellow warning icon beside the adapter, Windows has detected a problem with the device or its driver. If the adapter does not appear at all, the problem may be related to the driver, BIOS settings, hardware, or Windows detection.
Sometimes the adapter may appear under an unknown device instead of its normal name. This can also indicate that Windows does not have the correct driver installed.
Update the Network Adapter Driver
A damaged or outdated driver is one of the most common causes of network adapter problems.
In Device Manager, right click your network adapter and select the option to update the driver. Allow Windows to search for an available driver.
If Windows cannot find a suitable driver, visit the official website of your laptop or motherboard manufacturer using another device. Search for your exact computer model and download the correct network driver for your version of Windows.
Copy the driver to your computer using a USB drive and install it.
I recommend using the manufacturer website instead of random driver download websites. Incorrect drivers can create even more problems.
Reinstall the Network Adapter Driver
Sometimes updating the driver is not enough. If the driver installation has become corrupted, reinstalling it can work better.
Open Device Manager, right click the network adapter, and select Uninstall Device. If Windows provides an option to remove the driver software, only select it when you have a replacement driver available.
Restart your computer afterward.
Windows may automatically reinstall the network adapter when the system starts. If it does not, install the correct driver manually.
This method can be particularly useful when the network adapter was working normally before a Windows update or software change.
Run the Windows Network Troubleshooter
Windows includes troubleshooting tools that can automatically check common network problems.
Open Settings and find the Network and Internet troubleshooting options. Run the available network troubleshooter and allow Windows to inspect your connection.
The troubleshooter may detect a disabled adapter, incorrect settings, or problems with network services.
It will not fix every network adapter problem, but it is a good starting point because it requires very little technical knowledge.
Reset the Network Configuration
If the adapter appears to be working but you still cannot connect to WiFi or Ethernet, resetting the Windows network configuration may help.
Open Command Prompt as an administrator and run the following commands one at a time.
netsh winsock reset
netsh int ip reset
ipconfig /release
ipconfig /renew
ipconfig /flushdns
Restart your computer after running these commands.
These commands reset important networking components, refresh your IP address, and clear the DNS cache.
I recommend running them carefully and one at a time. Do not randomly enter commands from unknown websites because some network commands can change important Windows settings.
Use Network Reset in Windows
Windows also provides a Network Reset feature for situations where normal troubleshooting does not solve the problem.
Open Settings and go to Network and Internet. Find the advanced network settings and look for Network Reset.
Network Reset removes network adapters and reinstalls them. It also returns certain networking settings to their default state.
After the reset, your computer may restart, and you may need to reconnect to your WiFi network.
This is one of the solutions I would save for later in the troubleshooting process because it changes more settings than simply restarting the computer.
Check Windows Update
Windows updates can sometimes include new network drivers and fixes for hardware compatibility.
Open Windows Update and check whether updates are available. Install pending updates and restart the computer.
If your network adapter stopped working immediately after a Windows update, however, the update itself may be related to the problem.
In that situation, check whether your computer manufacturer has released a newer network driver designed for the current Windows version.
Roll Back the Network Driver
If the network adapter stopped working after a driver update, rolling back the driver may solve the issue.
Open Device Manager and find your network adapter. Open its properties and look for the Driver section.
If the Roll Back Driver option is available, Windows may allow you to return to the previous driver.
This can be useful when a new driver has compatibility problems with your particular laptop or motherboard.
Check WLAN AutoConfig Service
For WiFi problems, Windows depends on several background services.
One important service is WLAN AutoConfig.
Press Windows and R together, type services.msc, and press Enter.
Find WLAN AutoConfig in the list. Make sure the service is running and that its startup type is configured appropriately.
If the service is stopped, start it and then try connecting to WiFi again.
This solution is mainly useful when Windows detects the wireless adapter but does not properly manage available wireless networks.
Check Airplane Mode and Physical WiFi Controls
Sometimes the problem is much simpler than it appears.
Make sure Airplane Mode is turned off. On some laptops, there is also a physical WiFi switch or a keyboard shortcut that can disable wireless connectivity.
Look for a wireless key on your keyboard. Depending on the laptop manufacturer, you may need to press it together with the Function key.
If WiFi suddenly disappeared after accidentally pressing a keyboard shortcut, enabling wireless again may immediately solve the problem.
Check BIOS or UEFI Settings
If the network adapter does not appear anywhere in Windows, check your BIOS or UEFI settings.
Some computers allow wireless hardware to be enabled or disabled from firmware settings.
Restart the computer and enter the BIOS or UEFI setup using the key shown during startup. Look for settings related to wireless devices, onboard devices, LAN, or network hardware.
Only change settings that you understand. If you are unsure, leave the existing configuration unchanged.
Test With Another Connection
A useful way to identify the source of the problem is to test your computer with another network.
If WiFi is not working, try connecting through Ethernet if your computer has an Ethernet port. You can also test a mobile hotspot if your wireless adapter is visible.
If Ethernet works but WiFi does not, the wireless adapter or its driver becomes the main suspect.
If neither connection works, the problem may involve Windows networking, drivers, system configuration, or hardware.
When the Network Adapter Is Completely Missing
If the network adapter does not appear in Device Manager even after reinstalling drivers and restarting Windows, the problem may be more serious.
The adapter could be disabled in BIOS or UEFI, Windows may not have the correct driver, or the hardware itself could have failed.
For desktop computers, a physical Ethernet card or WiFi card can sometimes become loose. For laptops, internal wireless hardware can also fail, although this is less common than a driver or configuration problem.
If software troubleshooting does not bring the adapter back, professional hardware testing may be necessary.
Final Thoughts
The network adapter not working in Windows problem can look complicated, but I would not immediately assume that the hardware has failed. In my experience, checking the adapter status, restarting Windows, updating or reinstalling the network driver, and resetting network settings can solve many common problems.
Start with the simple checks first. Make sure the adapter is enabled, inspect Device Manager, restart the computer, and check for driver problems. If those steps do not help, try the Windows network troubleshooter, reset networking commands, and Network Reset.
For WiFi problems, also check WLAN AutoConfig, Airplane Mode, and any physical WiFi controls on your laptop.
If the adapter completely disappears from Device Manager and Windows cannot detect it even after the correct driver is installed, hardware or BIOS settings may need further investigation.
The important thing is to troubleshoot one step at a time. Changing several settings together makes it difficult to know what fixed the problem. With a systematic approach, many network adapter problems in Windows can be fixed without reinstalling the operating system.
