I have a 60mb/s internet connection. When the download starts it is at about 1Mb/s and quickly slows all the way down to 0.0kb/s. I’ve tried using the verify files button which kick starts the download to 100kb/s and then very quickly falls down to 0.0kb/s again. I didn’t see much about this with a quick google and forum search and its quite frustrating.
Update! After about 30 minutes of just leaving the launcher up it has started working all by itself. Currently at 6MB/s so I hope it is fixed.
If it happens again, this step given to me by Sinlo worked great. Download immediately started back up again and completed quickly.