We saw an issue with a customer whose Ctrl+Alt+Del took forever to prompt for password. We looked at several things to try to figure it out. It was also happening when unlocking the workstations. We finally we found out…
The problem was Desktop Authority Password Self-service. It’s a tool they use for users to reset their own password and unlock their own account and they’ve since fixed the issue in a newer version. So once the client upgraded the problem went away. For the record, they werr running Windows 2008 R2 envionment.