Windows errors

Network adapter shows an error or 'No network devices found'

Windows shows an error related to your network adapter (Wi-Fi or Ethernet), or Device Manager reports the adapter as missing, disabled, or malfunctioning, resulting in no internet connection.

Difficulty
Easy
Time
20–45 minutes
DIY cost
$0
Pro cost
$60–$150

Symptoms

  • No Wi-Fi or Ethernet icon available, or it shows an error/X
  • Device Manager shows the network adapter missing, disabled, or with a warning icon
  • Message like 'No network devices found' appears when troubleshooting
  • Other devices connect to the same network fine

Likely causes

  • CommonNetwork adapter driver corrupted, outdated, or uninstalledThis is the most frequent cause of an adapter disappearing or malfunctioning in software.
  • CommonAdapter disabled accidentally in Device Manager or BIOSIt's easy to disable a network adapter by mistake, especially with certain keyboard shortcuts on laptops.
  • PossibleWindows Update removed or altered the adapter driverUpdates occasionally replace a working driver with an incompatible one.
  • PossiblePhysical adapter hardware failureOn laptops especially, physical Wi-Fi card issues can present as a driver-level error.
  • Less commonAirplane mode enabled, disabling all wireless radiosThis simple setting is easy to overlook as the actual cause.

What to do

  1. Check that Airplane Mode is off, usually via a Quick Settings icon or a dedicated function key on laptops.
  2. Open Device Manager, expand Network adapters, and check if your adapter is listed; if it shows a down arrow or warning icon, right-click and choose Enable device.
  3. If the adapter isn't listed at all, click Action > 'Scan for hardware changes' to see if Windows redetects it.
  4. Right-click the adapter and choose 'Update driver,' then 'Search automatically,' or download the specific driver from your PC or network card manufacturer's website.
  5. If a recent Windows update coincides with the issue, try rolling back the driver via the adapter's Properties > Driver tab > Roll Back Driver, if that option is available.
  6. Run the built-in Network Troubleshooter (Settings > Network & Internet > Status > Network troubleshooter).
  7. If the adapter shows in Device Manager but never regains function after driver reinstalls, and it's a laptop's built-in Wi-Fi, this may indicate a hardware failure needing professional repair.

Tools and parts

  • Another device with internet access to download drivers

When to call a pro

If driver reinstalls and enabling the device in Device Manager doesn't restore the network adapter, a technician can determine if the physical Wi-Fi or Ethernet hardware has failed.

Safety

Generally low risk

Generally low risk for a careful person. Stop if anything looks different from what this guide describes.

Related guides

Operator provides AI-generated troubleshooting information. It can be wrong. For safety-critical, electrical, gas, structural, medical, automotive safety, or other high-risk problems, consult a qualified professional.