Photos app on iPhone not syncing in iOS 11
I upgraded my iPhone7, iPad AIr and iPad Pro to iOS 11.
The iPad Air had stopped syncing Photos properly, reboots did not correct it, turning off ICloud Photo Library and Upload to My PhotoStream, rebooting and then turning them back on did not work. I finally logged out of my iCloud account and back in, and it seems to be resolved on that device a few days back.
But now the iPhone 7 is doing the same thing. I repeated these steps of turning off ICloud Photo Library and Upload to My PhotoStream, rebooting and then turning them back on, and I did get the Photo to sync partially, but it stopped at 38,880 (photos and videos), whereas the Mac on Sierra, and the two iPads all show 57.755 (photos and videos).
I've made sure that I'm on wifi (I did have it set to allow cellular too).
With the Photos app open and the phone on the charger, I can see periodically that something is working briefly (the swirl next to the wifi signal) but the photos count is stagnant at 38,880.
I've also tried resetting the Network Settings.
I guess my next step is to log out of my iCloud account on the iPhone entirely, reboot and log in again.
Anyone else with this issue find another less painful fix?
iPhone 7, iOS 11, null