We aren't multicast imaging PCs at this time (just hitting F12 on each system to enter the imaging process), but I see in the log that it is attempting to download files via multicast and failing with errors...then it appears to move on to try http to download the files and proceeds? Or I am reading that incorrectly. This task sequence (set up by someone who no longer works for us, unfortunately) was completing successfully when we were on 2012 SP1, and broke with the upgrade. It appears to install the config mgr client, and the next thing it should do according to the task sequence is to start installing applications (Office, etc.). None of that software actually gets installed. Thank you for your time.