Consider the following scenario:
You have an instance of SQL Server installed on a computer.
You have Microsoft SQL Server 2012 Management Studio (SSMS 2012) or SQL Server 2014 Management Studio (SSMS 2014)installed on a client computer.
You connect to the instance of SQL Server by using SSMS on the client computer.
You type some Transact-SQL statements in the Query Editor in SSMS.
In this scenario, the IntelliSense feature does not work correctly.
Note This issue typically occurs when the connection between SQL Server and the client is slow.
Each new cumulative update for SQL Server contains all the hotfixes and all the security fixes that were included with the previous cumulative update. Check out the latest cumulative updates for SQL Server:
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.