Windows 7 64bit Host - VirtualBox 5.1.2 r108956 The network operation failed

[Peris_D]

Dear community, VirtualBox 5.1.2 r108956 failed with Windows 7 64bit Host and Ubuntu as Guest. As reported for other versions of VirtualBox, "The network operation failed with the following error: During network request: Connection refused". I followed all recommendations suggested for older versions of virtualbox but any of them fixed the problem. Because the network is failing I do not have access to internet when I'm using ubuntu, and it is critical for accessing some of my documents/data. Let me know if I need to report something else, and how I can report them. Thanks, Peris

[Frank Mehnert]

The absolute minimal bit of information you need to provide is 1) when does this error message happen, 2) a VBox.log file and the exact version of your Ubuntu guest.