Iphone 6 calendar stopped syncing with Outlook
My iPhone 6 calendar sync's with Outlook via the iCloud, but has stopped working properly. When I enter an appointment on my iPhone 6, it appears in my iCloud calendar, but not in my Outlook calendar. However when I enter an appointment in Outlook, it appears in my iCloud calendar and on my iPhone 6. I'm on iOS 9.3.1 and Outlook 2016. Can anyone help me with this?
iPhone 6, iOS 9.3.1