Network Adapter Missing in Windows 11: How to Fix It

A missing network adapter in Windows 11 can prevent your PC from connecting to Wi-Fi or Ethernet. You may notice the Wi-Fi option has disappeared, Ethernet no longer works, or the adapter is missing from Device Manager. This can happen after a Windows update, a driver change, a BIOS reset, a hardware change, or a temporary Windows networking issue. In some cases, the adapter is still installed but hidden or disabled. In other cases, Windows may not have the correct driver. This guide explains why the network adapter may be missing and how to restore it, starting with simple checks and moving to driver and network troubleshooting.

Why Is the Network Adapter Missing in Windows 11?

Windows 11 may fail to detect a Wi-Fi or Ethernet adapter for several reasons. The adapter itself may still be physically present, but Windows may not be loading its driver or the device may have been disabled.

Common causes include:

• Corrupted or missing network drivers after an update or system change.
• A disabled network adapter in Windows or Device Manager.
• A temporary Windows problem that prevents the adapter from being detected correctly.
• Windows Update or driver incompatibility, particularly after a major update.
• Hidden devices in Device Manager.
• BIOS/UEFI settings disabling onboard Wi-Fi or Ethernet hardware.
• Network configuration corruption.
• Hardware failure, such as a faulty Wi-Fi card, Ethernet adapter, or motherboard component.

If the adapter disappeared immediately after a Windows 11 update, start by checking Device Manager and the driver before resetting your entire network configuration.

1. Restart Your Windows 11 PC

Start with a simple restart. A temporary Windows or driver problem can sometimes prevent the network adapter from being detected correctly.

1. Click Start > Power > Restart.
2. Wait for Windows 11 to start completely.
3. Check whether the Wi-Fi or Ethernet option has returned.
4. Open Device Manager and expand Network adapters to see whether the device appears.

Quick Insight: If the adapter returns after restarting, the problem was likely temporary. If it repeatedly disappears after every restart or sleep cycle, investigate the driver, power settings, or hardware.

2. Check Device Manager for the Network Adapter

Device Manager can tell you whether Windows 11 detects the network hardware but has disabled it, hidden it, or encountered a driver problem.

1. Right-click Start and select Device Manager.
2. Expand Network adapters.
3. Look for your Wi-Fi or Ethernet adapter.
4. If it has a down-arrow icon, right-click it and select Enable device.
5. If it has a yellow warning icon, right-click it and select Properties to check the error message.

If you don’t see the adapter, click View > Show hidden devices and check Network adapters again.

You can also select Action > Scan for hardware changes. Windows will scan the system and may rediscover the missing network adapter.

3. Manually Install the Network Adapter Driver

If the network adapter does not appear in Device Manager, Windows may be missing the driver required to detect and use the hardware. This can happen after a Windows reinstall, major update, or driver failure.

Since the affected PC may not have an internet connection, use another computer or your phone to download the driver from the PC, laptop, motherboard, or network adapter manufacturer’s website.

1. Identify your PC or motherboard model.
2. Visit the manufacturer’s support page.
3. Download the latest Wi-Fi or Ethernet driver for your Windows 11 version.
4. Copy the driver to the affected PC using a USB drive.
5. Install the driver and restart Windows.
6. Open Device Manager and check Network adapters again.

If the correct driver is installed, Windows should detect the network hardware and the Wi-Fi or Ethernet option should return.

Quick Insight: If the adapter remains completely absent from Device Manager even after installing the correct driver, don’t keep reinstalling drivers. Next, check BIOS/UEFI settings and possible hardware issues.

4. Check BIOS/UEFI Network Settings

If the Wi-Fi or Ethernet adapter is completely missing from Device Manager, check whether the BIOS/UEFI has disabled the network hardware.

Some desktop and laptop computers let you enable or disable onboard Wi-Fi, Ethernet, or other network hardware in the BIOS/UEFI.

1. Restart your PC.
2. Enter the BIOS/UEFI setup using the key shown during startup. Common keys include F2, Delete, F10, or Esc, depending on the manufacturer.
3. Look under sections such as Advanced, Integrated Peripherals, Onboard Devices, Wireless, or Network.
4. Make sure the onboard network device is Enabled.
5. Save the changes and exit BIOS/UEFI.
6. Start Windows 11 and check Device Manager > Network adapters again.

Menu names vary by computer, so check your PC or motherboard manufacturer’s documentation if you cannot find the setting.

Quick Insight: If the network adapter is disabled at the firmware level, Windows 11 may not detect it at all. Enabling it in BIOS/UEFI can make the adapter reappear without reinstalling Windows.

5. Restart Network-Related Services

Windows relies on several background services to manage network connections. If one of these services stops or becomes stuck, your Wi-Fi or Ethernet connection may not work properly.

1. Press Windows + R. Type services.msc and press Enter.
2. Find WLAN AutoConfig if you’re troubleshooting Wi-Fi.
3. Right-click it and select Restart. If it isn’t running, select Start.
4. For Ethernet or general networking, also check services such as DHCP Client and Network Connections.
5. Restart the PC and check whether the network adapter or connection has returned.

Quick Insight: Restarting these services helps when Windows detects the network hardware but the connection or Wi-Fi isn’t working properly. It may not restore an adapter that is completely absent from Device Manager.

6. Reset Network Settings

If the adapter is detected but Windows networking remains broken, a network reset can remove corrupted network configurations and reinstall network adapters.

1. Open Settings.
2. Go to Network & internet > Advanced network settings.
3. Select Network reset.
4. Click Reset now.
5. Confirm the reset and allow Windows to restart.

Network reset removes installed network adapters and their settings, then reinstalls them after the restart. You may need to reconnect to Wi-Fi and reconfigure VPN or other networking software afterward.

Quick Insight: Use network reset after checking the adapter and driver. It is more useful for corrupted network configuration than for a network card that Windows cannot detect at all.

7. Check Windows Update or Roll Back a Recent Update

If the network adapter disappeared immediately after a Windows 11 update, the update or a related driver change may be responsible.

First, check whether Microsoft has released a newer update:

1. Open Settings > Windows Update.
2. Click Check for updates.
3. Install available updates and restart the PC.

If the problem began immediately after a recent update, open Settings > Windows Update > Update history to identify what was installed.

If appropriate, you can use Recovery options to uninstall a recent update. The available options depend on the update and your Windows installation.

8. Check for a Network Adapter Hardware Problem

If the network adapter remains missing from Device Manager after installing the correct driver and checking BIOS/UEFI, the problem may be hardware-related.

Try these checks:

• Test the Ethernet connection with another cable and router port.
• If possible, test a USB Wi-Fi or Ethernet adapter.
• For a desktop PC, check whether an internal network card is properly seated.
• For a laptop, check the manufacturer’s hardware diagnostics.
• Look for any network device or Unknown device under Device Manager.

If another network adapter works normally on the same PC, the original Wi-Fi or Ethernet hardware may be faulty.

What to Do If the Network Adapter Is Still Missing

If the network adapter is still missing after trying the fixes above, the next step is to determine whether the problem is specific to Windows 11 or the network hardware.

If possible, connect a USB Wi-Fi or Ethernet adapter to the PC. If Windows detects and uses the external adapter normally, the original network hardware may be the source of the problem.

For a laptop, check the manufacturer’s support page for hardware diagnostics. Desktop users can also check whether an internal PCIe network card is properly connected.

If the adapter disappeared after a BIOS update, hardware replacement, or major Windows upgrade, check the manufacturer’s documentation for compatibility information before making further changes.

If none of these steps restore the adapter, back up your important files and consider professional hardware diagnostics, particularly if the device is also missing from BIOS/UEFI.

Frequently Asked Questions