I am a new Mac user, got my first Mac (Macbook Pro) last month. I have since switched my Windows Home Server to a Mac Mini running OS X Server. I have set up all the file sharing, remote access, Shared iTunes Library, backing up my Macbook to the Server etc. However, one problem occurs pretty frequently that I cannot seem to resolve. If I open a new finder window on my Macbook Pro, and select the server from the "Shared" section on the left sidebar, I always get "Connection Failed". Also no Screen Sharing button is available. If I actually select "Go->Connect to Server" I can connect fine using domain name, hostname, or IP. Sometimes after I go this route, I can select the machine from the left sidebar, it will connect fine, and I get the Screen Sharing button. Sometimes not. Seems rather flaky. Any advice? I found this post but it did not resolve my issue.