Changing name on Sql server

I change the name on my SQL2005 server, after that i run sp_dropserver and
sp_addserver, but when i tru do delete som sql agent job or create new one
iam getting error:"An error has occurred while establishing a connection to
the server. When connecting to SQL Server 2005, this failure may be caused
by the fact that under the default settings SQL Server does not allow remote
connections. (provider: Named Pipes Provider, error: 40 - Could not open a
connection to SQL Server) (.Net SqlClient Data Provider)"
any help pleaseDid you restarted SQL when you changed SQL names?
And also one thing ... did you executed
"sp_addserver 'servername', local"?
"Viktor" <serguienkov@.hotmail.com> wrote in message
news:ef9Sza%23yHHA.1776@.TK2MSFTNGP03.phx.gbl...
>I change the name on my SQL2005 server, after that i run sp_dropserver and
>sp_addserver, but when i tru do delete som sql agent job or create new one
>iam getting error:"An error has occurred while establishing a connection to
>the server. When connecting to SQL Server 2005, this failure may be caused
>by the fact that under the default settings SQL Server does not allow
>remote connections. (provider: Named Pipes Provider, error: 40 - Could not
>open a connection to SQL Server) (.Net SqlClient Data Provider)"
> any help please
>