jtech

I found the answer that worked for me on reddit: Go to the credentials manager in Windows and add the server and your credentials there. Then logout of windows and back in and it should work. I know.... I'm responding to an old post, but its good to document things somewhere.

I had this same issue on 6.10.3 (for reference). I am running a VM through my NVidia card and trying to use GUI through my Intel iGpu. My issue was my VM setup. I went into Settings > VM Manager > click "Advanced View" > and for "PCIe ACS override" select "Multi-Function" (I had mine set to "Downstream"). I'm not a pro at this setting. Maybe "Both" is the better choice, but this fixed my problem with 'GUI loading to a black screen with a cursor in the top left'. Reboot Unraid, and then go to Tools > System Devices > and make sure your discreet graphics card is not checked. If it is checked, it likely won't allow GUI boot to work. Hope it saves someone the hours I lost trying to pinpoint this.