Report Forever 1% Progress in Sync Troubleshooting Posted May 15, 2015 · Edited May 15, 2015 by jalcide Over a week and It never moved past 1% and never finished. I've had to switch to a different sync solution (out of respect, I won't name it here). The sync of 532GB (the differences) took 14 minutes. Done. So there was nothing wrong with my LAN.