We don’t use Home Group, we use Work Network and we cannot access any folders or files in those PCs unless we deliberately shared them.
We managed to get one of them working though. The problem with this one was that Windows Firewall was blocking it. That said, we checked the Firewall settings for the other 2 unused PCs and although they’re correct, they still don’t get assigned to a light build.
Any other ideas? We’ll keep looking in the meantime.