D90D7 having issues connecting to domain

D90D7 having issues connecting to domain

I am new to wyse and am having issues joining a D90D7 with embedded windows7 to the domain. I am logging in as the admin and when I go to connect it to the domain it connects fine and tells me to restart like normal. then after restarting it is still connected to the work group. it also has seemed to create a new image or something. My settings are back to factory and my remote agent is gone off of it.

What am I doing wrong? Can you not join to a domain like a regular windows 7 PC?

Please excuse my ignorance also...