id summary reporter owner description type status component version resolution keywords cc guest host 14533 HostOnly Network creation results in E_FAIL mjordan79 "On Virtualbox '''5.0.51 r102375''' using Windows 10 build '''10240''' 64 bits (retail) creating an host-only network fails with: C:\Programmi\oracle\VirtualBox>vboxmanage hostonlyif create 0%... Progress state: E_FAIL VBoxManage.exe: error: Failed to create the host-only adapter VBoxManage.exe: error: Code E_FAIL (0x80004005) - Unspecified error (extended info not available) VBoxManage.exe: error: Context: ""enum RTEXITCODE __cdecl handleCreate(struct HandlerArg *)"" at line 71 of file VBoxManageHostonly.cpp " defect new network/hostif VirtualBox 5.0.2 hostonly hostonlyif e_fail all Windows