Install and Configure Microsoft Dynamics NAV 2013

Business Central/NAV User Forum
1

Please help help me i have install nav 2013 its not running its giving this error

Microsoft Dynamics NAV

A fatal error occurred. The connection to SQL server cannot be established or is no longer usable. This can be caused by one of the following reasons:

  • The server has been shut down manually or because of an error.

  • The SQL server connection settings are not correct

  • A network failure has occurred.

  • A hardware failure has occurred on the server or on your computer.

Try again later or contact your system administrator.

OK

2

Please check few things described here

http://msdn.microsoft.com/en-us/library/jj551773(v=nav.71).aspx

http://saurav-nav.blogspot.in/2013/02/error-after-restore-sql-backup-of-nav.html

3

Please Check your server Name.

At the time of installation make sure that you write correct Server Name.

you have to repair installation with correct Server Name.

4

Have you setup your Server Instance?

The “Navision Server Instance” must be setup and running, if it can run, it means it can connect to your SQL Server. Dedicated port has to be set for client to connect using RTC.