One of our servers is not seen in the network. The server works fine, you can access the shares and we have a database in it that works properly. The problem is that we cant connect to the SQL from Microsoft Excel how we used to. Since this stopped working, you can no longer see the computer on the network like you used to. All of the other computers and servers are listed under 'Network'. This one used to be, but isn't anymore. How can we resolve this important issue?