If your Windows device shows "Wi-Fi doesn't have a valid IP configuration," try these steps: 1. Release and renew IP address via Command Prompt. 2. Reset TCP/IP stack. 3. Disable and re-enable the Wi-Fi adapter. 4. Update or reinstall the Wi-Fi driver. 5. Run the built-in network troubleshooter. 6. Set a static IP address if DHCP fails.

If you are seeing the error "Wi-Fi doesn't have a valid IP configuration" on Windows, your device is unable to obtain an IP address from the router. Here are several methods to fix this issue:

The operating environment of this tutorial: Dell XPS 13, Windows 11

1. Release and Renew IP Address

This method resets your network’s IP configuration by releasing the current address and requesting a new one from the DHCP server.

• Press Windows R, type cmd, then press Enter to open Command Prompt.
• In the Command Prompt window, type ipconfig /release and press Enter.
• After completion, type ipconfig /renew and press Enter.
• Wait for a new IP address to be assigned, then check if the issue is resolved.

2. Reset TCP/IP Stack

Corrupted TCP/IP settings can prevent proper IP assignment. Resetting the stack can repair underlying network issues.

• Open Command Prompt as administrator by searching for cmd, right-clicking, and selecting "Run as administrator".
• Type netsh int ip reset and press Enter.
• Then type netsh winsock reset and press Enter.
• Restart your computer after the commands complete.

3. Disable and Re-enable Network Adapter

Temporarily disabling and re-enabling the Wi-Fi adapter can refresh the connection and resolve configuration glitches.

• Press Windows I to open Settings, go to Network & Internet > Wi-Fi.
• Click on your connected network, scroll down, and select Hardware properties.
• Toggle the adapter off using the switch, wait 10 seconds, then toggle it back on.
• Alternatively, go to Device Manager, locate your Wi-Fi adapter under Network adapters, disable it, then enable it again.

4. Update or Reinstall Wi-Fi Driver

An outdated or corrupted driver may fail to negotiate IP settings properly with the router.

• Right-click the Start button and select Device Manager.
• Expand Network adapters, right-click your Wi-Fi adapter, and choose Update driver.
• Select Search automatically for updated driver software.
• If no update is found, choose Uninstall device, restart your PC, and Windows will reinstall the driver automatically.

5. Run Network Troubleshooter

Windows includes a built-in diagnostic tool that can detect and fix common connectivity problems.

• Go to Settings > System > Troubleshoot > Other troubleshooters.
• Find Internet Connections, click Run, and follow the on-screen instructions.
• Allow the tool to apply fixes if any are recommended, then test your connection.

6. Set Static IP Address

If the router's DHCP service is malfunctioning or overloaded, manually assigning a static IP can bypass the issue.

• Open Settings > Network & Internet > Wi-Fi, click on your network.
• Under IP assignment, click Edit, then select Manual.
• Turn on IPv4 and enter an IP address within your router's range (e.g., 192.168.1.100).
• Set subnet mask (usually 255.255.255.0), gateway (typically 192.168.1.1), and DNS (use 8.8.8.8 and 8.8.4.4 for Google DNS).
• Save the settings and check connectivity.

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