When working on MS SQL Server to store your important data, you might face a number of problems or errors which can be due to database or network related issues or because of some kind of application failure. One such is Sql server does not exists error that appear while you are making an attempt to connect to the instance of MY SQL server. The full details related to the error are:

Unable to connect to server
Server: Msg 17, Level 16, State 1 [Microsoft][ODBC SQL Server Driver][Named Pipes]SQL Server does not exist or access denied.

Cause:

There are a number of probable reasons responsible for the appearance of the above MY Sql server error which is as follows:

• When you are trying to the SQL server instance that is configured only on Named Pipes server network library
• When you do not sufficient permissions to run the query
• Because of making connections with instance by using TCP/IP Sockets
• Another reason can be installation of SQL server on a cluster
• When you are unable to login properly

Solution:

You can go through the following resolutions in order to fix Sql server does not exist error:

• You can hardcode TCP Port or Named Pipe of SQL server that may help in resolving the error.
• Try to make changes in the connection settings related to network and enable TCP Port 445

These steps will definitely help you regarding error resolution. But in the middle of connection failure, sometimes the database may get corrupt resulting to which the data records get inaccessible. The root cause for these problems is internal errors or virus infection. In such situations, you have to make use of ms sql database repair software that works to repair the damaged database as well as peform Mysql restore database in an efficient manner.