We have a SharePoint 2010 farm installation on a Windows 2008 R2 machine. I'm trying to sync the user profiles (Central Admin > Manage Service Application > User Profile Service Application > Start Profile Synchronization) from AD to update the new entries. Each time I run the sync (Incremental/Full) I get "An unexpected error has occurred." error.
Both "Forefront Identity Manager Service" and "Forefront Identity Manager Synchronization Service" are running and I have restarted them a few times. However, I cannot restart the "User Profile Service Application" (under Central Admin > Manage Service Application) as it shoots, "An unexpected error has occurred". Neither can I disable or run the timer job to run the sync; I get the same error.
There's not much information in the event viewer or the SharePoint log to troubleshoot this error. Although, I have realized that when I run the command: stsadm -o sync -ListOldDatabases (see attached) the last successful synchronization for the content databases was last month. I suspect this might be the issue?
I'd appreciate any help in this regard.