I'm using Windows 10 Professional as Host and Virtual Box Version 6.0.10 r132072 (Qt5.6.2). Fact is, I installed Virtual Box as Administrator. I'm not sure about this, but there was an windows update a few days ago. Before 3 Host Only Devices exist, now they where gone.
I reinstalled VirtualBox - no help When I create an Host only Adapter and try to use it on Guest I run into:
The log reads: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).
Fehlercode:E_FAIL (0x80004005)
Komponente:ConsoleWrap
Interface:IConsole {872da645-4a9b-1727-bee2-5585105b9eed}
00:00:02.250219 NAT: DNS#0: 192.168.2.1 00:00:02.251004 E1000#1: Chip=82540EM LinkUpDelay=3000ms EthernetCRC=on GSO=enabled Itr=disabled ItrRx=enabled TID=disabled R0=enabled GC=enabled 00:00:02.251127 IntNet#0: szNetwork={HostInterfaceNetworking-VirtualBox Host-Only Ethernet Adapter} enmTrunkType=4 szTrunk={VirtualBox Host-Only Ethernet Adapter} fFlags=0x8000 cbRecv=325632 cbSend=196608 fIgnoreConnectFailure=false 00:00:02.251193 VMSetError: F:\tinderbox\win-6.0\src\VBox\Devices\Network\DrvIntNet.cpp(1768) int __cdecl drvR3IntNetConstruct(struct PDMDRVINS *,struct CFGMNODE *,unsigned int); rc=VERR_INTNET_FLT_IF_NOT_FOUND 00:00:02.251217 VMSetError: Failed to open/create the internal network 'HostInterfaceNetworking-VirtualBox Host-Only Ethernet Adapter' 00:00:02.251250 VMSetError: F:\tinderbox\win-6.0\src\VBox\Devices\Network\DevE1000.cpp(7986) int __cdecl e1kR3Construct(struct PDMDEVINS *,int,struct CFGMNODE *); rc=VERR_INTNET_FLT_IF_NOT_FOUND 00:00:02.251252 VMSetError: Failed to attach the network LUN 00:00:02.251262 PDM: Failed to construct 'e1000'/1! VERR_INTNET_FLT_IF_NOT_FOUND (-3600) - The networking interface to filter was not found. 00:00:02.264183 AIOMgr: Async flushes not supported