My new iPad intermittently has trouble accessing the iTunes/app store. It is on wi-fi and absolutely has internet connectivity. I have tried resetting the iPad, which doesn't help. I've tried logging out and logging back in with my apple ID, which sometimes temporarily helps. It seems I go through random periods (which happen more often than not) where I cannot download from the app store. I initiate a download and then get a message "cannot connect to iTunes store". Anyone have any ideas what is going wrong? I am on my home wi-fi.