Why is Realtek network adapter not working?

Answered by Tom Adger

The Realtek network adapter not working can be caused by a variety of factors. Let’s explore some possible reasons and potential solutions:

1. Disabled Network Adapter: The first thing to check is if your Realtek network adapter is enabled. Sometimes, it may get accidentally disabled. To check, right-click on the Start button, select “Device Manager,” and expand the “Network adapters” category. Look for your Realtek adapter, right-click on it, and choose “Enable” if it’s disabled.

2. Outdated or Incompatible Driver: Another common reason for a non-functioning Realtek network adapter is an outdated or incompatible driver. Drivers are essential software that allows your operating system to communicate with the hardware. To update the driver, there are a few options:

A. Manual Update: Visit the Realtek website or your computer manufacturer’s support website and search for the latest driver for your specific model. Download and install the driver manually.

B. Device Manager Update: In the Device Manager, right-click on your Realtek network adapter, select “Update driver,” and choose the option to search automatically for updated driver software. Windows will attempt to find and install the latest driver for you.

C. Third-Party Driver Updater: If you find it challenging to update drivers manually, you can use third-party driver updater software like Driver Booster or Driver Easy. These tools can scan your system, identify outdated drivers, and automatically download and install the latest versions.

3. Network Troubleshooter: Windows 10 has a built-in network troubleshooter that can help diagnose and fix common network-related issues. To run the troubleshooter, go to “Settings” > “Update & Security” > “Troubleshoot.” Select the “Internet Connections” troubleshooter and follow the on-screen instructions.

4. Conflicting Software or Settings: Certain software or settings can interfere with the proper functioning of your network adapter. For example, antivirus software, firewalls, or VPNs can block network access. Try temporarily disabling such software to see if it resolves the issue. Additionally, check your network settings and ensure they are correctly configured.

5. Hardware Issues: If none of the above solutions work, there could be a hardware problem with your Realtek network adapter. It may be faulty or damaged. In such cases, you may need to consider replacing the network adapter or seeking professional assistance.

Personal Experience: I once encountered a situation where my Realtek network adapter stopped working after a Windows update. After trying various troubleshooting steps, including updating the driver and running the network troubleshooter, I discovered that a third-party firewall was causing the issue. Disabling the firewall temporarily resolved the problem, and I later updated the firewall software to a compatible version.

The Realtek network adapter may not be working due to reasons like a disabled adapter, outdated driver, conflicting software, or hardware issues. By ensuring the adapter is enabled, updating the driver, running the network troubleshooter, checking for conflicting software or settings, and considering hardware problems, you can troubleshoot and resolve the issue.