This is good news for all companies that are using Office 365:
http://blogs.office.com/2014/10/28/introducing-built-mobile-device-management-office-365/
Guided Walkthrough for troubleshooting WSUS agents
A good starting point when troubleshooting issues with WSUS agents is Microsofts “guided walktrough for troubleshooting problems that relate to WSUS agents that are not reporting to a WSUS server”, http://support2.microsoft.com/kb/2993943