I am not able anymore to connect a VM to any of the host's COM ports under virtual box. I select "Host device" and tried typing "COM11" (Used to work in the past) "com11", "COM11:" or "com11:" but it always fails to boot with:
Failed to open host device 'COM11' (VERR_FILE_NOT_FOUND).
E_FAIL (0x80004005)
ConsoleWrap
IConsole {872da645-4a9b-1727-bee2-5585105b9eed}
Any clues on how to solve it?
- Host is a Windows 10 64bit machine.
- Host has COM11 and COM12 at the time of VM boot
- COM11 can be used by host applications (Putty et al)
- Guest is DOS but since it doesn't even boot, is irrelevant.