iCloud photo library stuck uploading
My Photos upload to iCloud Photo Library stopped about two weeks ago. It states at the bottom: "19 731 Photos, 1 389 Videos, Uploading 21 707 items". The last one hasn't change since the problem first occurred. Sometimes the whole disappears and I can see "Restoring...". Anyone has any idea how to make it work again?
- iPhone 6S+ 128 GB, 15 GB free space. Photos make up 34 GB on the device itself. Photos on iCloud make up 112 GB.
- iOS 9.3.4.
- Yes, I did read the similar threads. Nothing there suggested seems to be working.
- I checked iCloud.com, the new photos are not there.
- Yes, I do have a strong internet connection (15 Mbps upload), and it works perfectly. I even tried other wifi connection in several different locations.
- I did restarting the app, reboot, hard reset, switching off/on photo stream, iCloud photo library, logged out/in from iCloud several times, delete recently deleted photos, made some favourites, even deleted the last photo which is not uploaded. Nothing seems to be working.
- Shared folders do work.
- Google Photos app upload works perfectly.
- There is no other problems with any other iCloud service.
- I have the 1 TB iCloud storage started about a year ago, approx. 78% is free.
- Photos app background activity drains 28% of the whole, but not one new photo is uploaded. I can't even switch this off.