AutoSPInstaller – stuck on Running Prerequisite Installer (online mode)

I am using AutoSPInstaller to install SharePoint 2016 on multiple Windows 2016 servers.  It has finished what it needs to do on the local server and has started installing on the first remote server.  However, it has been stuck for a few hours at the following step:

Running Prerequisite Installer (online mode)

I couldn’t see any activity in Task Manager on the remote server so assumed it was waiting for something to happen.  In this instance it was UAC – after disabling this on the remote server, and restarting the installation, it continued as expected.