Based on reports from Intune customers, we have identified an issue with Apple’s latest release of iOS 9.2 which is impacting devices managed via Mobile Device Management (MDM). To reduce the potential impact, Intune customers should advise their end users to wait before upgrading their devices to iOS 9.2.
Read more at source: http://blogs.technet.com/b/microsoftintune/archive/2015/12/11/important-issue-with-the-ios-9-2-release.aspx