Are certificate problems the worst problems ever? I’d have to say so after watching the hordes of Microsoft customers affected in one way or another due to having to manage System Center apps, along with making sure certificates are appropriate and accurate. Plus, providing a new or update certificate is not a click-click process.
Windows Azure Online Backup has an issue where the backups will not work due to the Windows Azure Access Control Service (ACS) using a new certificate authority. Fortunately, Microsoft has a hotfix available to help with the issue, so you can get your backups to work.
Here’s the hotfix: FIX: Backups are unsuccessful when you use Windows Azure Online Backup