Pardon me for asking this, but wouldn't have been faster and simpler to 
physically connect one computer to the other?

Michael

Sent from my iPhone

> On 31 Dec 2016, at 1:07 pm, Tim Law <[email protected]> wrote:
> 
> Update.  For the benefit of anyone else having similar problems with iCloud 
> syncing ‘stuck’.
> 
> I now have a reasonable degree of confidence that Photos has been sorted and 
> will now correctly sync with iCloud over four devices. 
> This has not been the easy process I had expected.   I discovered that 
> creating a new library I could keep the original library and not risk losing 
> data. Only one library can be the ‘system library’ and sync with iCloud. 
> 
> I have one computer that is ticked to download originals and that computer is 
> now showing ‘all up to date’ in Photos. Yay.
> 
> My mobile devices have always synced well with iCloud and update any changes 
> immediately.
> 
> My laptop had been refusing to sync correctly with iCloud and was stuck for a 
> week. After signing out of iCloud, restarting the computer in Safe Mode, then 
> restarting again in normal mode, rebuilding the Photo Library with no change, 
>  I ended up creating a new Library, then turned iCloud syncing back on and it 
> is currently downloading the contents of my iCloud photo gallery, some 50Gb, 
> so will take a while.   
> 
> I lost track of how many times I found  Photos trying to upload the entire 
> 15000 photos to iCloud, at least five,  and am grateful to have a 1000Gb plan 
> with Bigpond on cable so had the capacity for such nonsense. 
> 
> I expect my problems are now on the way to being resolved. Looking forward to 
> happy Photos syncing in the New Year.
> 
> Regards
> 
> Tim
> 
> 
>> On 23 Dec 2016, at 7:28 PM, Tim Law <[email protected]> wrote:
>> 
>> EEEk,,,   :-(
>> 
>> Restarted Mac Mini.
>> This got the upload moving again - yay. 
>> 
>> "uploading 100 to go"
>> "50 to go" looking good.
>> "uploading 1 item"
>> 
>> Success I’m thinking.
>> Suddenly it is uploading 15,827 items - AGAIN!
>> 
>> Sigh …..
>> 
>> I’ve quit Photos and will see what mood it is in tomorrow. 
>> 
>> Cheers
>> 
>> Tim
>> 
>> 
>> 
>> 
>>> On 23 Dec 2016, at 6:35 PM, Tim Law <[email protected]> wrote:
>>> 
>>> Good evening,
>>> 
>>> I am hoping to find out how to reset the sync data to force one computer to 
>>> reset the sync data for loading Photos to iCloud
>>> 
>>> Two weeks, or more, ago, I turned on iCloud storage for Photos on four 
>>> devices. 
>>> All are logged into the same iCloud account, although some are @me.com and 
>>> some are @mac.com email address names. I understand this is insignificant. 
>>> I have checked at https://appleid.apple.com/ and found all four devices are 
>>> logged into the same Apple ID
>>> 
>>> Mac Mini - 10.11.6  Cannot be upgraded to Sierra
>>> Mac Book Pro   macOS 10.12.1
>>> iPhone 6S    iOS 10.1.1
>>> iPad Air 2  iOS 10.1.1
>>> 
>>> In order to keep a current back-up, I have turned on ‘Download originals to 
>>> this Mac’ on the Mac Mini which is my ‘main’ computer. Data is backed up 
>>> using Time Machine and Super Duper.
>>> 
>>> All the mobile devices have the same number of photos and videos as each 
>>> other and as is https://www.icloud.com/#photos2  which is 15,003
>>> The Mac Mini registers it should have 14752.
>>> 
>>> The Mac Mini is Stuck at uploading an extra 1878 photos and has been for 
>>> over 24 hours. This is the second time this has happened and it has taken a 
>>> week to upload the 55Gb of data a second time. Photo’s triggered itself 
>>> into a reload of all photos after I turned off iCloud Photo Library in an 
>>> effort to get the devices correctly syncing. 
>>> 
>>> When I delete, or add, a photo to any of the mobile devices, it is shared 
>>> to the other mobile devices quickly. 
>>> Photos on the Mac Mini has kept several photos that have been deleted for 
>>> days on the other devices. 
>>> 
>>> During the week I can see the CPU working hard on iCloud or Photos, then I 
>>> see the upload loading to iCloud. It varies between activity on both, but 
>>> once ‘stuck’ on 1878 to go, there is no activity showing. 
>>> 
>>> I have tried the Pause for One Day button in Photos but nothing forces the 
>>> reset and correction as I thought it would.
>>> 
>>> I think I need to find a file that contains the sync data and remove it as 
>>> I suspect it has got corrupted somehow. 
>>> 
>>> Is there such a file and are my ideas sensible or is there another option. 
>>> 
>>> I’ve been patient for two or more weeks with Photos and iCloud - like the 
>>> forums suggest - now is the time for a hammer!!  kidding
>>> 
>>> 
>>> Ideas welcome.
>>> 
>>> What about turning off iCloud Photo Library, deleting all the photos in the 
>>> Mac Mini library….. eeeek….. and then turning it back on again so all the 
>>> 55Gb will download. That sounds scary.
>>> 
>>> Cheers
>>> 
>>> 
>>> 
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