I have a galaxy S6 which is having synch issues with Facebook and Gmail. ?

[AC Question]

I have a galaxy S6 which is having synch issues with Facebook and Gmail. Verizon has tried everything including a new device which worked great for 2 weeks. Now Facebook won't synch, can't even force it and Gmail only sychs manually. Facebook will say can't connect when I try to load most recent etc but I am connected to the internet and everything else is working fine. Any ideas?

 

[B. Diddy]

Welcome to Android Central! Does this happen on both wi-fi and mobile data?