There are reported cases where VirtualBox can cause your network config in the VM to become invalid and throw the error message Failed to open/create the internal ...
Bridge Wi-fi network adapter Enable the Virtual Machine’s Network adapter Run Network troubleshooter Check Firewall Settings Reinstall VirtualBox Let’s get started with the troubleshooting guide.
In current developer builds of VirtualBox, KVM support appears for the first time. The function is experimental and only available through manual source builds.