Network Errors

Fix Ethernet Unplugged Error

Introduction

If you’re seeing the “Ethernet unplugged” message on your computer, you’re not alone. This common issue can interrupt your internet connection and productivity, especially when you rely on a stable wired network. Whether you’re using Windows, macOS, or Linux, understanding what causes this error — and how to fix it — can save you time and frustration.

In this detailed guide, we’ll explain what the Ethernet unplugged error means, why it happens, and how to fix it step-by-step. By the end, you’ll have all the tools and methods to restore your connection like a pro.

What Does the “Ethernet Unplugged” Error Mean?

When your system displays “Ethernet cable unplugged,” it’s signaling that your computer isn’t detecting a proper physical connection through the Ethernet port. This can occur even when the cable appears connected — meaning the issue might be with the cable, the network adapter, or even system settings.

Typically, the error appears in:

Windows: “Network cable unplugged”
macOS: “Cable unplugged”
Linux: “Device not connected”

The root causes vary, but the fix is often straightforward once you know where to look.

Common Causes of the Ethernet Unplugged Error

Before diving into solutions, it’s helpful to understand what triggers this message. The error could result from:

A damaged Ethernet cable or loose connection
Disabled network adapter in device settings
Outdated network drivers
Incorrect network configuration
Hardware issues with the Ethernet port or router
Faulty power management settings that disable adapters

Knowing the source makes it easier to find the right fix without unnecessary troubleshooting.

How to Fix Ethernet Unplugged Error (Step-by-Step Guide)

Now let’s explore the best ways to fix the Ethernet unplugged error on your computer. Start with basic checks, then move on to more technical solutions.

Check the Physical Connection

The simplest fix is often the most overlooked.

Inspect the Ethernet cable for cuts, bends, or damage.
Unplug and replug both ends of the cable — one into the router or modem and the other into your PC.
Try connecting the same cable to another device. If it works there, the issue lies in your computer or port.

If the cable is damaged, replace it with a new Cat 5e or Cat 6 cable for better performance.

Restart Your Devices

Restarting helps refresh the network connection and clear temporary glitches.

Reboot your computer.
Power cycle your router and modem by unplugging them for 30 seconds, then plugging them back in.

After both devices restart, check whether the Ethernet connection is restored.

Disable and Enable the Network Adapter

Sometimes, your network adapter may freeze or malfunction. Disabling and re-enabling it can reinitialize the connection.

On Windows:

Press Windows + R, type ncpa.cpl, and hit Enter.
Right-click on your Ethernet adapter.
Select Disable, wait a few seconds, and then choose Enable.

This refreshes the adapter and often resolves the unplugged error.

Update Your Network Drivers

Outdated or corrupted drivers are one of the top reasons behind network issues. Updating them ensures your Ethernet adapter communicates correctly with your system.

Steps:

Press Windows + X, then select Device Manager.
Expand Network adapters.
Right-click your Ethernet adapter and choose Update driver.
Select Search automatically for drivers.

If Windows doesn’t find an update, visit your manufacturer’s website (like Intel or Realtek) for the latest driver version.

Adjust Duplex Settings

Sometimes mismatched duplex settings between your router and computer can cause connectivity problems.

Open Control Panel → Network and Sharing Center → Change adapter settings.
Right-click your Ethernet adapter → Properties → Configure → Advanced tab.
Select Speed & Duplex from the list.
Change the value to Auto Negotiation.

Click OK and check if the connection works.

Disable Power Management for the Network Adapter

Windows may turn off your network adapter to save power, causing the “Ethernet unplugged” error.

Open Device Manager → Network adapters.
Right-click your Ethernet device and choose Properties.
Under the Power Management tab, uncheck Allow the computer to turn off this device to save power.

This ensures your Ethernet connection stays active even when idle.

Reset the Network Configuration

If none of the above works, reset your network settings to remove misconfigurations.

On Windows:

Open Command Prompt (Admin).
Run the following commands one by one:

Restart your PC.

This refreshes your entire TCP/IP stack and often resolves hidden network conflicts.

Check for Hardware Issues

If the Ethernet port or adapter itself is defective, you may need professional repair.

Try these steps:

Plug your Ethernet cable into another port on your router or switch.
Use a USB-to-Ethernet adapter to see if it works.
If the new adapter works, your built-in Ethernet port might be damaged.

In such cases, contacting a technician or your device manufacturer is best.

Update Your Operating System

An outdated operating system can also lead to compatibility issues with drivers and adapters.

For Windows: Go to Settings → Update & Security → Windows Update → Check for updates.
For macOS: Visit System Preferences → Software Update.

Install any pending updates and restart your system.

Contact Your Internet Service Provider

If you’ve tried all the above methods and still face the issue, the problem could lie outside your computer.

Sometimes, the ISP’s hardware, signal, or routing configuration can interrupt your wired connection. Contact your provider to verify whether the issue is on their end.

If you’re looking for reliable, high-speed, and stable wired internet, Dhanote Internet Services is a trusted choice that ensures seamless connectivity for both home and business users.

Additional Fixes for macOS Users

For macOS users facing an “Ethernet cable unplugged” error:

Go to System Preferences → Network.
Select your Ethernet service and click the gear icon → Make Service Inactive.
Then click Make Service Active again.
If that fails, delete the Ethernet service and add it again by clicking the + button.

This method resets the network interface and helps restore connectivity.

Preventing Ethernet Unplugged Errors in the Future

To minimize the chance of seeing this issue again:

Always handle Ethernet cables gently and avoid bending them sharply.
Keep drivers and system software up to date.
Use high-quality network equipment (routers, switches, and adapters).
Regularly restart your router to refresh IP allocations.

These simple preventive steps can save you from repeated connection problems.

(FAQs)

Why does my computer say Ethernet unplugged when it’s plugged in?

This often happens due to a loose cable, faulty Ethernet port, outdated driver, or misconfigured network adapter settings.

How do I fix the network cable unplugged error in Windows 10?

Try replugging the cable, updating network drivers, disabling power-saving mode, or resetting TCP/IP settings using Command Prompt.

Can antivirus software cause Ethernet connection problems?

Yes, some firewalls or antivirus programs can interfere with network adapters. Temporarily disable them to test connectivity.

Does a bad Ethernet cable cause the unplugged error?

Absolutely. Damaged or low-quality cables can interrupt data transmission, leading to the “Ethernet unplugged” message.

Should I use Wi-Fi instead of Ethernet?

Ethernet offers faster, more stable connections. Wi-Fi is convenient, but wired networks are generally better for gaming or large downloads.

The Ethernet unplugged error might seem frustrating, but it’s almost always fixable with a few careful checks and configuration tweaks. Whether the issue lies with your cable, network adapter, or settings, following the steps above should get your connection back online quickly.

If you still face recurring network issues, consider switching to a reliable provider like Dhanote Internet Services for stable, high-speed connectivity that keeps you online without interruptions.