Fix Problem with Realtek PCIe GBE Family Controller on Windows 10

Realtek PCIe GBE Family Controller” is essential driver to communicate your LAN hardware on motherboard with Operating System installed in your computer. This driver also controls the wired network of your computer, which is “Realtek Gigabit Network Controllers”. This controller driver is available for both 64-bit and 32-bit Windows Operating System.

The speed of Realtek PCIe GBE Family Controller can vary according to types of Gigabit Ethernet you use. For example, if your Realtek Network Interface Controller is 2.5G Gigabit Ethernet, then it can deliver up to 2.5GB per second, while if it is 10/100/1000M Gigabit Ethernet, the maximum speed is 1000MB/sec. But if your Realtek PCIe FE Family Controller is 10/100M network device, then it can deliver up to 100MB/second of internet speed. Here, ‘FE’ stands for ‘Fast Ethernet’.

As mentioned, “Realtek PCIe GBE Family Controller” is driver software associated with LAN hardware on your motherboard. If this driver is missing, corrupted or outdated, and/or not compatible with Windows OS, then you can face several network related issues in your computer. One user reported that when Windows 10 installs or upgrades something, it usually changes the power management settings on his hardware devices, and this might be the reason why there are issues with the installation of Realtek drivers. In this case, you can turn OFF power management from the Network Card options in ‘Device Manager’ to fix.

Sometimes, problems with Ethernet occur after upgrading your device to Windows 10  possibly due to driver compatibility issues. After upgrade, it might possible that the driver is not compatible with current Windows OS version. So in this case, you need to update Realtek PCIe GBE Family Controller driver to fix this issue.

If Network Adapter or Ethernet Controller (hardware) is in good condition and Realtek PCIe GBE Family Controller driver is properly installed, but still you are facing problem with Ethernet, then firewall or security tool can be one reason behind this. Sometimes this issue occurs due to enabled security tool or firewall. So, you need to disable your security program or firewall temporarily and check if the Realtek problem is fixed. Let’s go for the solution.

How to fix Realtek PCIe GBE Family Controller problem on Windows 10?

Method 1: How to Download and Install Realtek PCIe GBE Family Controller driver?

 Step 1: At first, you need to visit your laptop/motherboard’s manufacturer official website and download the drivers for your on-board Network Adapters, and save the “Setup file” in your computer hard drive

Step 2: Now, press “Windows + X” keys together from keyboard and select “Device Manager”

Step 3: In the opened “Device Manager” window, locate and expand “Network Adapters” category

Step 4: Right-click on “Realtek PCIe GBE Family Controller” and select “Update Driver Software…”

Step 5: Choose the ‘Manual Mode’, pick the driver you downloaded, and follow on-screen instructions to finish the installation

Step 6: Once done, restart your computer to see the changes and check if the problem is resolved.

Method 2: Perform System Restore Operation to fix

You can fix this issue by restoring your Windows to the restore point when you know everything was working great.

Step 1: Press “Windows + R” keys together from keyboard to open “Run Dialog Box”

Step 2: In the opened “Run Dialog Box”, type “rstrui.exe” and hit “Ok” button to open “System Restore”

Step 3: In the opened “System Restore” window, click on “Next” and choose a restore point from a date when everything was working great, and follow on-screen instructions to finish System Restore operation.

Method 3: How to make Realtek PCIe GBE Family Controller runs at full speed?

If Realtek PCIe GBE Family Controller is not running at full speed, then you can try following steps to make it run at full speed.

Step 1: Open “Run Dialog Box”, type “ncpa.cpl” and hit “Ok” button to open “Network Connections” window

Step 2: Right-click on the current Network Adapter that has ‘Green Mark’ and select “Properties”

Step 3: In the opened “Properties” window, click on “Advanced” tab and click on “Speed and Duplex” under “Property” column

Step 4: Click the drop-down icon under ‘Value’ and select “1.0GBps Full Duplex”. You can also select other maximum speed appeared in the list.

Method 4: Buy a new PCIe Network Adapter

If the above methods didn’t help you to fix Realtek PCIe GBE Family Controller problem, then it might possible your Network Adapter is dead. So, you can solve the issue by purchasing the new one of your motherboard manufacturer. However, replacing the PCIe network Controller with new one requires some advanced skills. So, you can get USB WiFi Adapter/Network Adapter and connect via wireless if your router/WiFi supports.


I am sure this article helped you on “How to Fix Realtek PCIe GBE Family Controller problem on Windows 10/8/7” with several easy methods. You can read & follow our instructions mentioned above to do so. If this article really helped you, then you can share this post with others to help them.