Why aren't my photos synchronizing? They stopped syncing recently.  I called Apple support and they had me update both my iPhone 6 and my Macbook Air which I did.

I verified that the settings are correct.



I also verified that both devices are connected to the internet.

What else can I check?
At the bottom of the iPhone photos app, in photos tab, see if the photos has been synced. Also in iCloud.com, Please check and confirm if the photos has been uploaded.

Maybe other uploads are jamming the networks. As mentioned in the comments, Quicktime files are doing so