Hi
I've looked around and found these possible answers.
"Have you tried going into the settings of the GMail application itself and making sure that GMail is set to sync? Not just in the Google accounts menu but the actual GMail application."
"It sounds like everything is set up right. The only other thing I can say is try going in to settings, applications, Application Manager, go do the Gmail app and clear the data to reset it."
"Go to Apps settings and Clear Data on Google Services Framework and Gmail, you will need to set your accounts on Gmail again, but it's the easiest way.
If it still does the same, sorry, but you will need to Delete the Google Account and add it again and after that check all the Google Apps that it affects to see if everything is back to normal, then set your Gmail app with Push Notifications and all and see. I've needed to do this in the past a couple of times with different phones, Xperia Z3 and my current OnePlus One."
"This happened to me after the last Gmail update on my M7. Might be unrelated to your problems (in which case sorry for wasting your time!), but what I had to do was go into Gmail-->Settings-->"your email address"-->and set "Days of mail to sync" to 30, 60 or all. Mine got reset to 0 for some reason, and that stopped my push."
One of the users ended up creating a back up to save their data and performed a Hard Reset which helped them.
Current Phone >
Samsung Galaxy s²⁴ Ultra 512gb.
