Photostream download issues after OS X Recovery
I have a 6 year old MacBook Pro that was getting lethargic and basically giving me nothing but beachballs on the simplest tasks. I decided to do an HD erase and OS X reinstall via Recovery using the Apple support guidelines. Since I was also planing to give the laptop to a family member heading off to college later this summer I intentionally did not do a full app and data recovery via my TimeMachine backup. The recovery process worked beautifully and the laptop is now working great.
I signed into iCloud and all my cloud data came across as expected, calendar, contacts, Pages and Numbers documents, etc., are all there. Everything is up to speed but my Photostream in Photos. I have 5 years of photos in Photostream...almost 20,000 images...and they are all available as they should be, and have been, on my desktop iMac, iPad and iPhone. They used to be available the same way on the laptop, but since the new OS install via Recovery the laptop's Photos app will only download and display Photostream photos from Jan 1, 2016 to the current day. So it is downloading some of my Photostream, but only the latest 3 months' worth. Very odd. I have it configured as the rest of my devices but nothing I've tried has made the laptop's new Photos installation go out and get the full Photostream set of photos. Any ideas? Thanks.
MacBook Pro (15-inch Mid 2009), OS X El Capitan (10.11.3)