I have a server in our network contains the database of the project (SQL Server 2005).
Suddenly a developer computer couldnot connect to the database which in that server.
and now another computer did the same.
The strange is the designer computer which still connecting to the server.
The designer computer conatins visual studio but does not contain SQL Server Managment Studio.
The Error is
error: 26 - Error Locating Server/Instance Specified
did certain software /windows updates make the problem ???