Error running vagrant up

There was an error while executing `VBoxManage`, a CLI used by Vagrant
for controlling VirtualBox. The command and stderr is shown below.

Command: ["hostonlyif", "create"]

Stderr: 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 in
fo not available)
VBoxManage.exe: error: Context: "int __cdecl handleCreate(struct HandlerArg *,in
t,int *)" at line 66 of file VBoxManageHostonly.cpp