Mac Desktop "Flashing"

Is your desktop doing the following repeatedly :

This indicates that your network User Folder has one of the following problems:

We will verify that your Network Home Folder exists.
We will verify that your Network Home Folder is correctly set in AD.
We will verify that your Network Home Folder is visible to the Mac OS.
You are using an local account which needs to be added to an exception list.

Before contacting the helpdesk please do the following: Unmount "wpu-folders" if it is on the desktop by dragging it to the trash.
Wait 2-3 minutes. If "wpu-folders" does not reappear and the home folder show up in the Dock then.Please contact the helpdesk.
Once they fix the issue, the problem will stop.