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.









