Also, are you sure this isn't an issue with the lab networking, since you said that it works fine if you disable networking.
I will raise this with the team that handles the installer, because this could be handled more gracefully.
Also, are you sure this isn't an issue with the lab networking, since you said that it works fine if you disable networking.
I will raise this with the team that handles the installer, because this could be handled more gracefully.