Google play won't connect even with Internet?

[AC Question]

I have a Sony Xperia, and ever since I've had it, it won't connect to google play. The Internet is on and Google works, even the other things like Google play books & the movies and TV one works, the only thing that won't connect is Google play. When I click onto it it says 'no connection retry' and the picture for my Google account won't show up either, even though it does for all the other apps.