As the title states, this happens randomly to Windows 7 accounts on our Windows 2008R2 domain controller.
We just had this start happening after changing from 123together hosted exchange to Rackspace hosted exchange. Also around this time our passwords on the DC started expiring, but not the exact day, and everyone has different days they need to change it before.
It has only affected 10 out of 30 accounts (I know which ones it is), and I see no link between them.
How can I figure out what services are trying to log on and fail?