Hi hargavaman,
Can you try logging out and then going into “offline” mode? Not a longterm solution, but it will help narrow down the problem. You should remove the command line at this point, there have been several fixes since QFE2 that have gone on to be released. If you’re getting stuck at 80%, please read this post: [Official] Read this if your Download has stopped around 81% - Getting Started & Setup - Epic Developer Community Forums. Thanks!
Carlos