id summary reporter owner description type status component version resolution keywords cc guest host 15970 Failed to create the host-only adapter (Windows 7) Dron007 "I cannot create host-only adapter neither with the command {{{ VBoxManage.exe hostonlyif create }}} nor from UI. I get error: {{{ 0%... Progress state: E_FAIL VBoxManage.exe: error: Failed to create the host-only adapter VBoxManage.exe: error: Could not operate the communication channel (VERR_BROKEN_PIPE) VBoxManage.exe: error: Details: code E_FAIL (0x80004005), component VirtualBoxWrap, interface IVirtualBox VBoxManage.exe: error: Context: ""enum RTEXITCODE __cdecl handleCreate(struct HandlerArg *)"" at line 71 of file VBoxManageHostonly.cpp }}} When I try to do it from UI I get error message with the text: {{{ Failed to create the host network interface. Could not operate the communication channel (VERR_BROKEN_PIPE). Result Code: E_FAIL (0x80004005) Component: VirtualBoxWrap Interface: IVirtualBox {0169423f-46b4-cde9-91af-1e9d5b6cd945} }}} This doesn't allow me to use Docker so it is blocker for me. It is reproducable with older 5.0.* versions too. I tried to reinstall VirtualBox, install with ""-msiparams NETWORKTYPE=NDIS5"" parameter, reset driver cache in ""windir%\inf\INFCACHE.1"" without any result. After error there is new ""Unknown Device"" in Windows Device Manager. Lines added to setupapi.app.log after failure: {{{ >>> [Build Driver List - ROOT\NET\0002] >>> Section start 2016/09/22 16:00:22.977 cmd: ""C:\Program Files\Oracle\VirtualBox\VBoxSVC.exe"" /Helper VirtualBox\SVCHelper\{86beac27-6c97-479d-9f92-48857dbe7773} cpy: Policy is set to make all digital signatures equal. ! sig: No installed catalogs matching catalog name '' were found that validated the file. ! sig: Error 1168: Element not found. ! sig: Verifying file against specific (valid) catalog failed! (0x800b0109) ! sig: Error 0x800b0109: A certificate chain processed, but terminated in a root certificate which is not trusted by the trust provider. ! sig: Verifying file against specific (valid) catalog failed! (0x800b0109) ! sig: Error 0x800b0109: A certificate chain processed, but terminated in a root certificate which is not trusted by the trust provider. ! sig: Verifying file against specific (valid) catalog failed! (0x800b0109) ! sig: Error 0x800b0109: A certificate chain processed, but terminated in a root certificate which is not trusted by the trust provider. ! sig: Verifying file against specific (valid) catalog failed! (0x800b0109) ! sig: Error 0x800b0109: A certificate chain processed, but terminated in a root certificate which is not trusted by the trust provider. ! sig: Verifying file against specific (valid) catalog failed! (0x00000057) ! sig: Error 87: The parameter is incorrect. ! sig: Verifying file against specific Authenticode(tm) catalog failed! (0x80092003) ! sig: Error 0x80092003: An error occurred while reading or writing to a file. <<< Section end 2016/09/22 16:00:23.698 <<< [Exit status: SUCCESS] >>> [DIF_REGISTERDEVICE - ROOT\NET\0002] >>> Section start 2016/09/22 16:00:23.761 cmd: ""C:\Program Files\Oracle\VirtualBox\VBoxSVC.exe"" /Helper VirtualBox\SVCHelper\{86beac27-6c97-479d-9f92-48857dbe7773} <<< Section end 2016/09/22 16:00:23.763 <<< [Exit status: SUCCESS] >>> [DIF_ALLOW_INSTALL - ROOT\NET\0002] >>> Section start 2016/09/22 16:00:23.763 cmd: ""C:\Program Files\Oracle\VirtualBox\VBoxSVC.exe"" /Helper VirtualBox\SVCHelper\{86beac27-6c97-479d-9f92-48857dbe7773} <<< Section end 2016/09/22 16:00:23.765 <<< [Exit status: SUCCESS (DI_DO_DEFAULT)] >>> [DIF_INSTALLDEVICEFILES - ROOT\NET\0002] >>> Section start 2016/09/22 16:00:23.765 cmd: ""C:\Program Files\Oracle\VirtualBox\VBoxSVC.exe"" /Helper VirtualBox\SVCHelper\{86beac27-6c97-479d-9f92-48857dbe7773} }}} also (which looks weird) some lines are added to section dated 2015/09/23: {{{ >>> [DIF_INSTALLDEVICEFILES - ROOT\NET\0002] >>> Section start 2015/09/23 20:02:36.865 ... ! sig: Verifying file against specific (valid) catalog failed! (0x800b0109) ! sig: Error 0x800b0109: A certificate chain processed, but terminated in a root certificate which is not trusted by the trust provider. dvi: Committing file queue... flq: CopyFile: 'C:\Windows\system32\DRIVERS\VBoxNetAdp.sys' flq: to: 'C:\Windows\Temp\OLD1D54.tmp' flq: CopyFile: 'C:\Windows\System32\DriverStore\FileRepository\vboxnetadp.inf_amd64_neutral_978f7ab983bb20bd\VBoxNetAdp.sys' flq: to: 'C:\Windows\system32\DRIVERS\SET1D54.tmp' flq: MoveFile: 'C:\Windows\system32\DRIVERS\SET1D54.tmp' flq: to: 'C:\Windows\system32\DRIVERS\VBoxNetAdp.sys' }}} Please let me know what information may I provide to help to fix this defect or find some workaround. OS: Windows 7, 64bit, SP1. I have Aventail VPN installed but it is inactive when I reproduce the problem. " defect new network/hostif VirtualBox 5.1.6 host-only adapter network all Windows