Fixing Internet Connectivity Issues After BIOS Update

If you've recently updated your BIOS and found yourself staring at an uninspiring screen, with neither Ethernet nor Wi-Fi connectivity in sight, you're not alone. This seemingly innocuous update aimed at improving your system's performance and compatibility can often lead to an unexpected digital desert, leaving your Internet feeling about as useful as a chocolate teapot. But fear not! Let’s dissect this scenario and explore detailed solutions to restore your connection.

Understanding the Problem​

A BIOS (Basic Input/Output System) update is designed to enhance the fundamental software that interfaces with your computer's hardware. While crucial for improved hardware compatibility and system stability, these updates can sometimes disrupt existing connections to Ethernet and Wi-Fi. The good news? There are effective remedies available to restore your Internet access.

Steps to Restore Connectivity​

Here's a detailed breakdown of solutions to get your network back online.

1. Perform a Hard Reset​

Sometimes, your computer just needs a breather. Here’s how to give it one:

• Power Down: Shut down your PC or laptop and unplug it from the power source. If you’re using a laptop, disconnect the charger.
• Discharge Power: Press and hold the power button for 30 seconds. This helps clear out residual electricity.
• Reconnect: Plug in your device and power it on. Check if your Ethernet or Wi-Fi works again.

2. Run the Network and Internet Troubleshooter​

Windows includes a built-in troubleshooter that can help identify and fix network issues:

• Access Settings: Navigate to Settings > System > Troubleshoot > Other troubleshooters.
• Launch the Tool: Click on ‘Network Adapter’ and follow the on-screen instructions.

This automated assistant can identify simple configurations that need adjustment.

3. Reset BIOS to Default Settings​

After a BIOS update, some settings may inadvertently change. Resetting the BIOS can help:

• Enter BIOS: Restart your computer and press the designated key (often F2, DEL, or ESC) to enter BIOS.
• Reset Settings: Look for an option to load factory defaults or reset settings.
• Save and Exit: Save changes and exit BIOS. Your computer will reboot.

4. Clear CMOS​

If the above doesn’t work, consider resetting the CMOS. This process restores BIOS settings to factory defaults:

• Open Your Device: Carefully open your computer case or laptop. Locate the small silver battery on the motherboard.
• Remove and Wait: Remove this battery for a few minutes. Reinsert it afterward.
• Reassemble: Close your device and restart it.

5. Check OnBoard LAN settings in BIOS​

Sometimes the onboard network interfaces can become disabled:

• Re-access BIOS: Follow the steps to enter the BIOS settings again.
• Find Network Settings: Look under the ‘Onboard Devices Configuration’ section to ensure that OnBoard LAN is enabled. If it’s off, enable it.

6. Reinstall the Network Card Driver​

Driver compatibility issues post-BIOS update can be a common culprit:

• Open Device Manager: Right-click on the ‘Start’ menu and select ‘Device Manager.’
• Expand Network Adapters: Find your Network adapter listed, right-click it, and choose ‘Uninstall device.’
• Restart: Restart your computer. Windows should automatically reinstall the driver. If not, manually download the latest driver from your manufacturer’s website.

7. Reset Your PC​

If all else fails, resetting your PC may be your best bet:

• Access Settings: Go to Settings > Update & Security > Recovery.
• Select Reset this PC: Choose ‘Get started’ and then opt for ‘Keep my files’ to retain your data while refreshing Windows.

Why BIOS Updates Can Affect Networking​

You might wonder, can a BIOS really impact something as seemingly unrelated as Internet connectivity? Absolutely! The BIOS controls how hardware communicates. An update might inadvertently change these communication pathways, leading to a loss of connectivity. If your Network card driver is not compatible with the new BIOS settings, this can result in connectivity issues.

Conclusion​

Getting back online after a BIOS update can be frustrating. The steps outlined above should lead you to a resolution. Always ensure you document any significant BIOS settings before making changes, and remember that reverting to previous settings or drivers might sometimes be necessary. If problems persist after following these troubleshooting steps, it may be prudent to contact your device’s support — they might have additional tailored solutions for you.
Have you encountered this issue before? What solutions worked for you? Share your experiences and tips in the comments below!

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Source: The Windows Club Ethernet or WiFi not working after BIOS update in Windows 11