Vb.net App - SQL Database Login

I have a vb.net app connecting to a sql database.

When I run the app on the PC running Sql Server it logins ok.

When I try and run the app on a different PC, I get the following error
System.Data.SqlClient.SqlException: Login failed for user 'BM-PC\Guest'.

I am using the following connection string

Dim connstring As String = "server=BM-PC;Initial Catalog=EquinexMasterSql;User ID=username;Password=password;Trusted_Connection=False;"

It looks like the users, login and database security is configured correctly
in Sql Server Management Studio.

Any suggestions are most welcome.

I have a feeling that you've configured your SQL Server database to accept windows authentication rather than SQL Authentication. I also think that you may be making a web application rather than a "vb.net app" but that may be a moot point. You should look at your authentication settings on your SQL Server database.

I checked my sql authentication and its set to accept both windows and sql authentication.

My application is definitely a win forms application.

Silly question but is it necessary to install sql client software on the PC, or does my vb.net app not require this.

Do you have something like EXCEL on that same workstation that is giving you the login to GUEST error message??

The client softwear should be installed. Are you using the SQL Native client driver? The SQL Server driver is included with XP.

But you don't need to install client software (like management studio or query analyzer) in order to run VB-client side apps against a remote DB.

I was asking if you had something like EXCEL on the client box so you could try to connect to the server/db with EXCEL and see what error popped up in that case.

I tried logging in to Sql through Excel with the following code but I get the following error - Login failed for user 'BM-PC\Guest'

I'm not sure where I type the username and password in my Excel VBA code.

Code:

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Sub DataExtract()
' Create a connection object.
Dim cnPubs As ADODB.Connection
Set cnPubs = New ADODB.Connection

' Provide the connection string.
Dim strConn As String

'Use the SQL Server OLE DB Provider.
strConn = "PROVIDER=SQLOLEDB;"

'Connect to the Pubs database on the local server.
strConn = strConn & "DATA SOURCE=BM-PC;INITIAL CATALOG=EquinexMasterSql;"

'Use an integrated login.
strConn = strConn & " INTEGRATED SECURITY=sspi;"

'Now open the connection.
cnPubs.Open strConn
           
End SubSub DataExtract()
' Create a connection object.
Dim cnPubs As ADODB.Connection
Set cnPubs = New ADODB.Connection

' Provide the connection string.
Dim strConn As String

'Use the SQL Server OLE DB Provider.
strConn = "PROVIDER=SQLOLEDB;"

'Connect to the Pubs database on the local server.
strConn = strConn & "DATA SOURCE=BM-PC;INITIAL CATALOG=EquinexMasterSql;"

'Use an integrated login.
strConn = strConn & " INTEGRATED SECURITY=sspi;"

'Now open the connection.
cnPubs.Open strConn
           
End Sub

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Is BM-PC\Guest and actual SQL Server Login Name? or is this a user on the PC

I wanted you to use EXCEL to connect like this...

If you have office 2003...

Go into EXCEL - Menu Data>Import External Data>Import Data

Pop-up appears with Select External Data source - and +New SQL Server Connection.odc should appear.

The rest should be pretty obvious...

Quote:

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Originally Posted by GaryMazzone

Is BM-PC\Guest and actual SQL Server Login Name? or is this a user on the PC

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BM-PC is the name of the server running SQL, in my app I've hard coded the login but it tries to login as Guest rather then what is hard coded in the app.

Quote:

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Originally Posted by szlamany

I wanted you to use EXCEL to connect like this...

If you have office 2003...

Go into EXCEL - Menu Data>Import External Data>Import Data

Pop-up appears with Select External Data source - and +New SQL Server Connection.odc should appear.

The rest should be pretty obvious...

---

I've managed to get Excel to connect to my Sql database using the SQL username and password.

You need to pass a user (login) that is stored in the SQL server Logins folder to this to work, unless of course you are in a domain and domain rights are correct. You don't pass the user of the OS.

In my vb.net App I login with the following details, this lets me login when I'm using BM-PC but not when I am at a remote PC.

Surely if this information wasn't in the Sql server logins folder then I shouldn't be able to login from BM-PC either.

Public connstring As String = "server=BM-PC;Initial Catalog=EquinexMasterSql;User ID=Username;Password=Password;Trusted_Connection=False;"

I know this is an old thread but I'm having the same issue, was this ever resolved?

Welcome to the forum!

Best to start a new thread - show your code and your connection string - and give your specific error message.

No reason to bury your question in this thread.

Quote:

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Originally Posted by szlamany

Welcome to the forum!

Best to start a new thread - show your code and your connection string - and give your specific error message.

No reason to bury your question in this thread.

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thanks, I will do that...