Title: Resolving RTL8153-VC-CG Ethernet Adapter Not Detected in Device Manager: Causes and Solutions
When the RTL8153-VC-CG Ethernet adapter is not detected in Device Manager, it can cause issues with network connectivity. This problem can stem from various sources, ranging from hardware issues to software-related conflicts. Here’s a detailed analysis and step-by-step guide on how to resolve this issue.
Potential Causes:
Driver Issues: The most common cause is outdated or corrupted drivers that prevent the Ethernet adapter from being detected by the system. USB Port Problems: The RTL8153-VC-CG adapter typically connects via USB. If there’s an issue with the USB port, such as insufficient Power or a faulty connection, the adapter might not be recognized. Faulty Hardware: A damaged or malfunctioning Ethernet adapter could be the root cause. Physical issues with the hardware, such as a broken cable or damaged chip, can lead to the detection problem. Conflicting Software or System Settings: Sometimes, other software or incorrect system configurations might interfere with the device detection process. Power Management Settings: Power-saving settings on your computer may disable USB devices to save energy, which could prevent the Ethernet adapter from functioning correctly.Step-by-Step Solution:
1. Check the Hardware Connection: Ensure the Ethernet Adapter is Properly Plugged In: Make sure that the RTL8153-VC-CG Ethernet adapter is securely connected to a working USB port on your computer. Try a different USB port if necessary, especially on the back of your PC or a port directly on your laptop. Test the Adapter on Another Computer: If possible, test the adapter on another machine to see if it’s recognized. If the issue persists, the adapter might be defective. 2. Update or Reinstall the Driver: Open Device Manager: Right-click on the "Start" button, select "Device Manager," and look for any "Unknown Device" or warning signs (yellow triangle) next to the network adapter section. Update the Driver: Right-click on the RTL8153 adapter (or unknown device), and select "Update Driver." Choose "Search automatically for updated driver software" and follow the prompts. Reinstall the Driver: If updating doesn’t work, uninstall the driver by right-clicking on the device and selecting "Uninstall device." Afterward, disconnect and reconnect the Ethernet adapter. Windows should attempt to reinstall the driver automatically. 3. Disable Power Saving Features: Turn Off USB Power Management : In Device Manager, expand the "Universal Serial Bus controllers" section. Right-click on each USB Root Hub and select "Properties." Go to the "Power Management" tab and uncheck "Allow the computer to turn off this device to save power." Adjust System Power Settings: Go to "Control Panel" > "Power Options" and choose your preferred power plan (preferably "High performance"). Click on "Change plan settings," then "Change advanced power settings." Scroll down to "USB settings" and set "USB selective suspend setting" to "Disabled." 4. Check for Conflicting Software:Uninstall Recently Installed Software: If you recently installed new software, especially network-related applications or virtual network adapters, they may conflict with the RTL8153 Ethernet adapter. Try uninstalling any such software and check if the adapter is detected.
Disable Virtual Network Adapters: Virtual network adapters (such as those created by VPN software) can sometimes interfere with physical network adapters. Disable any unnecessary virtual adapters in the "Network Connections" section of Control Panel.
5. Run Windows Network Troubleshooter: Right-click on the network icon in the system tray and select "Troubleshoot problems." Follow the on-screen instructions to allow Windows to automatically diagnose and fix any network-related issues. 6. Check BIOS/UEFI Settings (for Desktop Users): Sometimes, the system's BIOS settings may affect how USB ports function. Restart your computer and enter the BIOS/UEFI settings (usually by pressing F2, F10, or Del during boot-up). Ensure that "USB Configuration" is set correctly and that all USB ports are enabled. 7. Test with a Different Adapter (If Applicable):If the RTL8153-VC-CG adapter still doesn’t work after trying all of the above, consider using another Ethernet adapter to rule out hardware failure as the cause.
Conclusion:
By following the above steps, you should be able to resolve the issue of the RTL8153-VC-CG Ethernet adapter not being detected in Device Manager. Begin with simple checks like ensuring the adapter is properly connected, updating the driver, and disabling power-saving features. If these steps don’t work, deeper troubleshooting, such as examining conflicting software or faulty hardware, may be necessary.
If the problem persists, consider reaching out to the manufacturer's support for further assistance.