Troubleshoot Network Adapter in Windows 11

Network adapter issues can disrupt your internet connection, preventing access to local networks and online services. This guide explains how to use the built-in Windows 11 Network Diagnostics tool to identify and resolve adapter connectivity problems. By following these straightforward steps, you will learn how to run the troubleshooter, apply automatic repairs, and perform basic network resets to restore your connection.

Accessing Windows 11 Network Diagnostics

Windows 11 provides direct methods to launch the network troubleshooting utility.

Method 1: The System Tray

1. Locate the Network/Wi-Fi icon in the bottom-right corner of the taskbar.
2. Right-click the icon.
3. Select Diagnose network problems.

Method 2: Windows Settings

1. Open Settings by pressing Windows Key + I.
2. Click on System in the left sidebar.
3. Select Troubleshoot on the right pane.
4. Click on Other troubleshooters.
5. Locate Network and Internet and click the Run button next to it.

Running the Troubleshooter

Once launched, the diagnostic tool begins analyzing your system’s network configuration automatically:

1. Follow the On-Screen Prompts: The tool checks for IP configuration errors, disabled adapters, gateway connectivity issues, and DNS problems.
2. Select the Affected Adapter: If prompted, choose whether you are troubleshooting an Ethernet or Wi-Fi connection.
3. Apply Recommended Fixes: If Windows finds a problem (such as a disabled adapter or an outdated IP address lease), click Apply this fix to allow the system to implement the repair automatically.

Interpreting Diagnostic Results

After the scan finishes, Windows Diagnostics displays one of three outcomes:

• Issue resolved: The problem was identified and fixed (e.g., the adapter was reset or IP settings were refreshed).
• Issue identified but not fixed: The tool specifies the error (such as a cable issue, hardware fault, or driver failure) with recommended manual actions.
• No issues found: The network adapter is functioning properly, indicating the issue may stem from your router, modem, or internet service provider (ISP).

Next Steps If Issues Persist

If the diagnostic tool does not resolve the issue, perform the following complementary steps:

Perform a Network Reset

1. Open Settings and select Network & internet.
2. Click on Advanced network settings.
3. Under More settings, select Network reset.
4. Click Reset now and confirm by clicking Yes. Your PC will restart and reinstall all network adapters with factory default settings.

Reinstall Network Adapter Drivers

1. Right-click the Start menu and select Device Manager.
2. Expand the Network adapters section.
3. Right-click your network adapter (Ethernet or Wi-Fi) and select Uninstall device.
4. Restart your computer. Windows will automatically detect the hardware and reinstall the default driver.