Reply To: W3TC + Any Mobile Theme Pro Home › Forums › Any Mobile Theme Switcher › W3TC + Any Mobile Theme Pro › Reply To: W3TC + Any Mobile Theme Pro January 2, 2014 at 6:40 pm #2828 Chris I have the exact same setup and the exact same problem. My site is http://www.onedirection.net and randomly the mobile user will be served a desktop theme, and vice-versa. In fact right now I have just visited the site on my smartphone and it served me the desktop theme. If I refresh the page however I am served the mobile theme. What can be causing this? I have the Pro version.