Yesterday AD on my workstation was working fine. I could query AD from the Users and Computers GUI or from Powershell. An update was pushed last night and I came into work this morning and AD RSAT had been uninstalled (normal). I reinstalled it and the Users and Computers GUI works but all AD modules in PS fail with
WARNING: Unable to contact the server. This may be because this server does not exist, it is currently down, or it does not have the Active Directory Web Services running.
Obviously I have some level of connectivity to the servers and the servers haven't been touched and still have AD installed, since the GUI is working fine. But I can't call any AD modules from Powershell.