Other potential causes include incorrect settings, incompatible drivers, or hardware issues such as a faulty cable or network adapter problems. Follow the steps below to diagnose the exact cause. With these causes in mind, let’s explore the solutions to this issue.

1. Configure the Realtek Driver Properties

Adjusting the power options of the Realtek drivers to prevent them from saving energy can effectively resolve this issue. You need to configure three options:

Auto Disable GigabitGreen Ethernet andEnergy Efficient Ethernet

These settings aim to reduce power consumption and internet speed during low network activity. By disabling these, you can ensure that the network driver operates without interference.

2. Get the Driver from the Realtek Website

Using incompatible drivers can also be a primary reason for the Realtek PCIe GBE Family Controller disconnecting and leaving you without internet. To find a compatible network driver, visit the official Realtek website and download it, especially if your current network driver was installed via Windows Update.

3. Disable Power-Saving Options

Disabling the “Allow the computer to turn off this device to save power” setting can prevent the Realtek network adapter from going into power-saving mode, thereby resolving connectivity issues.

4. Reset the Network Settings

Misconfigured network settings, such as DNS settings, can also lead to the network driver disconnecting. Resetting the network settings can ensure there are no misconfigurations causing this issue.

5. Check for the Ethernet Cable and Hardware Issues

A faulty Ethernet cable, a damaged network adapter, or router issues could cause the network driver to disconnect. To identify the faulty component, check each hardware piece by replacing them one by one. Start by replacing the Ethernet cable; if the problem persists, consider taking your system and router to a repair shop for further diagnosis. Before doing so, you can reset your computer to determine if the issue is hardware-related.

Fix  Realtek PCIe GBE Family Controller Keeps Disconnecting - 36Fix  Realtek PCIe GBE Family Controller Keeps Disconnecting - 79Fix  Realtek PCIe GBE Family Controller Keeps Disconnecting - 48Fix  Realtek PCIe GBE Family Controller Keeps Disconnecting - 72Fix  Realtek PCIe GBE Family Controller Keeps Disconnecting - 29Fix  Realtek PCIe GBE Family Controller Keeps Disconnecting - 42Fix  Realtek PCIe GBE Family Controller Keeps Disconnecting - 80Fix  Realtek PCIe GBE Family Controller Keeps Disconnecting - 54Fix  Realtek PCIe GBE Family Controller Keeps Disconnecting - 69Fix  Realtek PCIe GBE Family Controller Keeps Disconnecting - 54