I have one dns server with server 2008 r2. The second server is a member server with server 2008 r2 and exchange 2010 installed. I had un joined the member server from AD DS and now re joined the server with the same name and ip settings. Now the server takes forever to get pass the applying computer settings... finally it will get to the CTRL+ALT+DEL screen. Then when i log in with an AD DS Admin account it says Please wait for the User Profile Service... Then it will finally log in successfully after about 30 minutes. Here is where the fun begins, my exchange 2010 data base is unmounted, when i try to mount the data base i get an error, also trying to create a new mailbox i get mapiNoAccess.... any thoughts?