I get the same exact response and error message. There are certain things I can view, like disk usage, users, groups, and open files. But I cannot access registry, services, processes, remote control, etc.
It really seems like my domain1 credentials are being passed to the domain3 PC's for some reason. Like when I use regedit and connect to the PC, Windows does not ask me for credentials, it uses my domain1 credentials and shows part of the registry that is set for Everyone to view. Other domain3 PC's, Windows asks for credentials before it will connect to any part of the remote domain3 workstation registry.