If I do that, Google Play Services starts to runs like mad in the background and my battery drains super fast. After a short time, I check online to see what got backed up, and still no new photos. No idea what it's doing, but it's definitely not backing up the pictures.I have the same issue. It will not back up on wifi only. When I change it over to data, immediately starts backing up. It makes no sense. I've tried it on my work wifi and my home wifi. Nothing. It seems like a screw up with the app.
Same issues as OP. Sprint HTC 10
I feel like Google Photos doesn't realize it's on Wi-Fi.
When I try to manually backup a photo (while on WiFi) it gives me a warning about how much data I'm going to use with my cellular network and whether I want to proceed.
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I may try this and see if it works. At least for now I am backing them up to Onedrive. I don't necessarily like Onedrive, but at least it automatically backs up, so for now, it works.
I will try this. Thanks for the tip!
Did it with for you? I can't seem to get it to stop.