Domain computers (windows 7 professional) cannot add domain user under Manage accounts locally. Windows 2012 r2 server. It appears since we moved from Windows 2008 server to 2012 r2 server, our domain computers do not recognize they are in the domain. I am not able to add the users locally on the windows 7 clients. I can see the servers, the desktops are recognized in AD Users and Computers - they can log in, etc. but there is a lot of hesitation connecting to the app server. We are only talking 3 or 4 desktops with gig connections, so this should not be an issue. When I go to add the domain user to the client, only the local workstation shows up - not the domain. I was having this issue with an application server, but I made that a DC and now the clients are experiencing the same issue. We have been having a lot of lagging and slowness issues so I decided to take a look at everyone's workstations. They are all doing the same thing - only showing up as their local computer and not seeing the domain when I tried to change Location to the domain. The desktops are listed in DNS, DHCP, etc. I have tried unjoining and rejoining the network, giving the computer a different name - nothing is working. I am also being denied when I try to stop or start a service - logging in locally and as a domain user on the local workstations. How do I fix this?