Lỗi failed to open a session for the virtual machine

Problem description: After installing a Windows 10 update and after restarting the computer, one of the following error(s) may appear when starting a VirtualBox machine:

• Failed to open a session for the virtual machine. Failed to open/create the internal network 'HostInterfaceNetworking-Ethernet-Name' (VERR_SUPDRV_COMPONENT_NOT_FOUND). Result Code: E_FAIL (0x80004005) Component: ConsoleWrap Interface: IConsole {872da645-4a9b-1727-bee2-5585105b9eed}
• Failed to open/create the internal network 'HostInterfaceNetworking-VirtualBox Host-Only Ethernet Adapter' (VERR_INTNET_FLT_IF_NOT_FOUND). Failed to attach the network LUN (VERR_INTNET_FLT_IF_NOT_FOUND)
• Could not start the machine because the following physical network interfaces were not found: (adapter 1) You can either change the machine's network settings or stop the machine.

How to FIX: Failed to open/create the internal network in VirtualBox. *

* Important: Before proceeding with the following methods, make sure that all Windows updates are installed and also see if the problem still occurs after restarting the computer.

Method 1. Choose the Correct Network Adapter is selected in VM Network Settings.

In some cases the VirtualBox error "Failed to open/create the internal network", appears because after a Windows Update, Windows changes the name of the physical Network Adapter. So, proceed as follows:

1. Press Windows

+ R keys to load the Run dialog box.

2. Type devmgmt.msc and press Enter to open the device manager.

3. Under Network adapters, notice the name of the active Network adapter.

4. Now open the network settings of the VM machine and make sure that the same network adapter is selected. If not, use the drop-down menu and select the correct adapter.

Method 2. Disable & Enable VirtualBox Host Only Adapter.

The next method to fix the "Failed to open/create the internal network" error in VirtualBox, is to disable and re-enable the VirtualBox Host Only Adapter in Device Manager.

1. Navigate to Device Manager.

2. Under Network adapters, right-click on VirtualBox Host-Only Adapter and Disable device. *

* Note: If you see here more than one VirtualBox Host-Only Adapters, uninstall all of them and reinstall Oracle VM VirtualBox.

3. Right-click again on VirtualBox Host-Only Adapter and choose Enable device. 4. Start VirtualBox and see if the "Failed to open-create the internal network" error appears.

Method 3. Update VirtualBox Host Only Adapter driver.

Some users reported that the VirtualBox error "Failed to open-create the internal network" is solved after updating the driver of the VirtualBox Host Only Adapter.

1. Navigate to Device Manager.

2. Under Network adapters, right-click on VirtualBox Host-Only Adapter and select Update Driver.

3. Select Browse my computer for drivers.

4. At the next screen choose Let me pick from a list of available drivers…

5. Select the VirtualBox Host-Only Ethernet Adapter and click Next.

6. After the driver is updated, start the VM machine and check if the error persists.

Method 4. Disable and Enable the VirtualBox NDIS6 Bridged Networking driver.

1. Press Windows

+ R keys to load the Run dialog box.

2. Type devmgmt.msc and press Enter to open the Network Connections.

3. Right-click on VirtualBox Host-Only Network and choose Properties.

4. Uncheck the VirtualBox NDIS6 Bridged Networking Driver and click OK.

5. Re-open the Properties again, re-check the VirtualBox NDIS6 Bridged Networking driver and click OK.

6. Now open the VirtualBox machine and check if the problem is fixed.

Method 5. Remove and re-Install VirtualBox.

1. Press the Win+R keys to open the Run dialog.

2. Type appwiz.cpl in the search box and press Enter

3. Select the Oracle VM VirtualBox and click Uninstall.

4. After uninstalling restart your PC.

5. Navigate to VirtualBox download page and download the latest version of VirtualBox for Windows hosts.

6. Right-click on the downloaded file and select Run as Administrator. (important)

7.Click Next on the first screen, and then make sure that Virtual Bridged Networking and VirtualBox Host-only Networking are selected for installation. Then press Next and follow the rest instructions to install VIrtualBox.

8. When the installation is complete, proceed to download and install also the latest version of Oracle VM VirtualBox Extension Pack.

9. Finally, open the VirtualBox and start the VM machine that is causing the error: "Failed to open/create the internal network…". *

* Note: If the problem persists, uninstall VirtualBox again and try to install an oldest version of the program.

That's it! Which method worked for you? Let me know if this guide has helped you by leaving your comment about your experience. Please like and share this guide to help others.

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Konstantinos is the founder and administrator of Wintips.org. Since 1995 he works and provides IT support as a computer and network expert to individuals and large companies. He is specialized in solving problems related to Windows or other Microsoft products (Windows Server, Office, Microsoft 365, etc.).