Issue:
VirtualKD fails to find source with a “WARNING: Inaccessible path” and 0n3 error code.
This issue occurs when [1] the Windows machine is on a domain and [2] the source is on a mapped (or UNC) network path and [3] the credentials for the network drive are not equivalent to the domain credentials.
It appears that VKD always uses domain creds, even if the drive was mapped with alternate creds.