Quick fix: Open Device Manager, right-click your network adapter, select "Disable device," wait 10 seconds, then "Enable device." This forces a driver reload.
Your network adapter is the hardware (and software) that connects your computer to the internet — either via Wi-Fi or Ethernet. When it stops working, you lose all connectivity. Common symptoms include: Wi-Fi icon missing from the taskbar, "No network adapters found" message, yellow exclamation mark in Device Manager, or the adapter showing as disabled. This guide covers every fix for both Windows 10 and Windows 11.
Fix 1: Enable the Network Adapter
The adapter might simply be disabled. Here's how to check:
- Right-click the Start button and select Device Manager
- Expand Network Adapters
- If your adapter has a down arrow icon, right-click it and select Enable Device
- If you don't see it, click View > Show Hidden Devices
Fix 2: Run the Network Adapter Troubleshooter
Go to Settings > System > Troubleshoot > Other Troubleshooters and run the Network Adapter troubleshooter. Windows will scan for problems and attempt automatic fixes, including resetting the adapter, reinstalling drivers, and clearing corrupt configurations.
Fix 3: Update Network Adapter Drivers
Corrupted or outdated drivers are the most common cause:
- Open Device Manager > Network Adapters
- Right-click your adapter and select Update Driver
- Choose "Search automatically for drivers"
- If that doesn't help, visit your laptop/motherboard manufacturer's website and download the latest network driver manually
- For Intel adapters: use the Intel Driver & Support Assistant tool
Fix 4: Roll Back the Driver
If the adapter stopped working after a recent update, rolling back may help. In Device Manager, right-click the adapter, select Properties > Driver tab > Roll Back Driver. If the button is grayed out, the previous driver version is no longer available, and you'll need to reinstall instead.
Fix 5: Uninstall and Reinstall the Adapter
In Device Manager, right-click the network adapter and select Uninstall Device. Check the box for "Delete the driver software for this device" if available. Restart your computer — Windows will automatically detect the hardware and reinstall a fresh driver. This resolves most corruption issues.
Fix 6: Reset TCP/IP and Winsock
Open Command Prompt as Administrator and run:
netsh winsock reset
netsh int ip reset
ipconfig /release
ipconfig /renew
ipconfig /flushdns
Restart your computer after running all commands.
Fix 7: Perform a Full Network Reset
As a last resort: Settings > Network & Internet > Advanced network settings > Network reset > Reset now. This removes all network adapters and reinstalls them, resets all networking components to factory defaults. Your computer will restart, and you'll need to reconnect to Wi-Fi and re-enter passwords.
Fix 8: Check BIOS Settings
On some laptops, the Wi-Fi adapter can be disabled in BIOS/UEFI. Restart your computer and press F2, F10, DEL, or ESC (varies by manufacturer) to enter BIOS. Navigate to Advanced > Network/Wireless and ensure the Wi-Fi adapter is Enabled. Save changes and exit.
Still Not Working? Get Expert Help
If none of these fixes resolve the network adapter issue, it may be a hardware failure or a deeply embedded driver conflict that requires professional diagnosis. Our certified technicians can connect remotely (via a secondary connection or share your phone's hotspot) and fix the issue.
Frequently Asked Questions
Why did my network adapter disappear from Device Manager?
This usually happens after a Windows update removes or corrupts the driver. Try scanning for hardware changes (Action > Scan for hardware changes in Device Manager), or run the Network Adapter troubleshooter from Settings > Troubleshoot.
How do I reset my network adapter on Windows 11?
Go to Settings > Network & Internet > Advanced network settings > Network reset > Reset now. This removes and reinstalls all network adapters and resets networking components to defaults. You'll need to reconnect to Wi-Fi afterward.
Can a Windows update break my network adapter?
Yes, this is relatively common. Windows updates can install incompatible drivers or change network settings. If your adapter stopped working after an update, roll back the driver in Device Manager or uninstall the recent Windows update.
What if my network adapter shows a yellow exclamation mark?
A yellow (!) mark means the adapter has a problem — usually a driver issue. Right-click it, select 'Update Driver,' or uninstall it and restart your computer so Windows reinstalls the correct driver automatically.
Is it possible for a network adapter to physically fail?
Yes, but it's rare in laptops less than 5 years old. If no software fix works and the adapter doesn't appear even in BIOS, the hardware may have failed. You can use a USB Wi-Fi adapter as a replacement ($15-30).