Top 5 Causes of RTL8111HS-CG No Network Detection Error

Top 5 Causes of RTL8111HS-CG No Network Detection Error

Top 5 Causes of RTL8111HS-CG No Network Detection Error

The RTL8111HS-CG is a popular Ethernet network card used in many desktops and laptops. If you encounter a "No Network Detection" error, it can be frustrating, but understanding the possible causes can help you troubleshoot and resolve the issue. Here’s a detailed, step-by-step guide to fixing this error.

1. Driver Issues

Cause: One of the most common causes of the "No Network Detection" error is outdated, corrupted, or missing drivers for the RTL8111HS-CG network card. Without proper drivers, the system cannot communicate with the network hardware.

Solution:

Step 1: Press Windows + X and select Device Manager. Step 2: Expand the Network Adapters section and locate the Realtek RTL8111HS-CG adapter. Step 3: Right-click on it and select Update Driver. Step 4: Choose Search automatically for updated driver software. Follow the prompts to install any available updates. Step 5: If no updates are found, visit the official Realtek website and download the latest driver for your operating system. 2. Network Cable or Port Problems

Cause: Sometimes, the issue may not be related to the computer itself but rather to a faulty network cable or Ethernet port. A damaged cable or a malfunctioning port can prevent the system from detecting a network connection.

Solution:

Step 1: Check the Ethernet cable for any visible damage. If damaged, replace it with a new one. Step 2: Try plugging the cable into a different Ethernet port on your router or switch. Step 3: Test the network connection on a different device using the same cable and port. If the other device works, the problem is likely with your computer. 3. Disabled Network Adapter

Cause: Sometimes, the network adapter may be accidentally disabled within the system’s settings, which would result in "No Network Detection" errors.

Solution:

Step 1: Press Windows + X and choose Network Connections. Step 2: Locate your Ethernet or Local Area Connection and check if it’s marked as Disabled. Step 3: If disabled, right-click on the connection and select Enable. Step 4: Wait a few moments to see if the network connection is detected. 4. BIOS/UEFI Settings

Cause: In some cases, the network adapter may be disabled at the BIOS or UEFI level, especially after a recent system update or hardware change. This can result in no network detection.

Solution:

Step 1: Restart your computer and enter the BIOS/UEFI setup by pressing a specific key (usually DEL, F2, or ESC) during startup. Step 2: In the BIOS/UEFI settings, navigate to the Advanced or Integrated Peripherals section. Step 3: Ensure that the Onboard LAN or Ethernet Controller is enabled. Step 4: Save the settings and exit the BIOS/UEFI. Restart your computer to check if the network adapter is detected. 5. Conflicting or Corrupted System Files

Cause: Corrupt system files or software conflicts can sometimes cause network adapters to fail, resulting in the "No Network Detection" error.

Solution:

Step 1: Open Command Prompt as an administrator by right-clicking on the Start button and selecting Command Prompt (Admin). Step 2: Type the following command and press Enter: sfc /scannow Step 3: Wait for the scan to complete. If any issues are found, the tool will attempt to fix them automatically. Step 4: Restart your computer after the process is completed.

Conclusion

The "No Network Detection" error with the RTL8111HS-CG can be caused by several issues, including driver problems, faulty cables, disabled adapters, BIOS settings, or corrupted system files. By following the above steps, you can systematically diagnose and fix the problem.

Quick Recap:

Update drivers Check cables and ports Enable network adapter Verify BIOS/UEFI settings Run system file checker

By troubleshooting these areas, you should be able to restore network functionality and get back online. If the problem persists, it may be worth reaching out to Realtek support or your device manufacturer for further assistance.