Photos never downloads iCloud originals
I have struggled with obtaining my original photos from iCloud for years. No device I had had enough storage to hold them all (SSD, external drives are too tricky with slow transfer speeds). I finally splurged for a 4TB 14" MBP with the hopes of downloading my entire 2.2TB iCloud (1.6TB are photos). Photos continues to be stuck on downloading originals, and the number almost never changes, even with a gigabit ethernet connection. I do see all the thumbnails and can download the photo individually to see it after clicking on a thumbnail.
This is clearly a problem that has been going on for years if the forums are any indication, and I have experienced it as well. Is there anyone that can provide a definite solution? I set up my new MBP as a new laptop, not an iCloud backup.
MacBook Pro, OS X 10.11