My WHS 2011 server has been working great, until I accidentally made security changes to the machine by clicking on "setup security" or something like that through remote desktop. The setup security icon appeared after I clicked on the start button. As a result, I can no longer use the Launchpad or access the server. I can, however, access shared folders/files through a browser. Now when I try remote desktop from file explorer on my client, I get a message that the server or domain name cannot be found.
Any ideas or suggestions?