Before first use of AutoSPInstaller 3.99.51 the host (Windows Server 2012 R2 Standard) had all recent dotNet versions installed, including NDP46-KB3045557-x86-x64-AllOS-ENU.exe which 'upgrades' dotNet Framework 4.5 ("dotNetFX45") to 4.6
AutoSPInstaller then stops part way through installation saying that dotNetFX45 is not installed. any attempt to re-install dotNetFX45 then confirms that it is already installed. Further installation of AutoSPInstaller cannot continue.
AutoSPInstaller then stops part way through installation saying that dotNetFX45 is not installed. any attempt to re-install dotNetFX45 then confirms that it is already installed. Further installation of AutoSPInstaller cannot continue.