SQL authentication attempt ignored

  • Thread starter Thread starter murphy
  • Start date Start date
M

murphy

I have a db server machine B set up with MSDE using mixed security.
From client machine A, I can run a .net windows forms app to connect to
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a database on B using SQL authentication.
From an asp.net app client A, using the same connection string, I can
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not connect. The event log on B shows:

Logon Failure:
Reason: Unknown user name or bad password
User Name: ASPNET
Domain: MYDEV
Logon Type: 3
Logon Process: NtLmSsp
Authentication Package: MICROSOFT_AUTHENTICATION_PACKAGE_V1_0
Workstation Name: MYDEV

This makes me think that for some reason, windows authentication is
being used instead.

My connection string:
Data Source=xy-mct01;Initial Catalog=xy;User ID=qxy;
Password=qxy;Network Library=DBMSSOCN;

Any ideas?

Thanks!
 
Verify that you're using the connection that you think you are and also
verify that the username and password is correct - ie try it from the
winforms app and see if it works there.
 
Thanks,

Yes it works from a winforms app and I think I'm using the connection I
intend to. Here is the code. It fails at conn.Open().

SqlConnection conn = new SqlConnection("Data Source=qxyhost;Initial
Catalog=qxy;User ID=quser;Password=quser;Network Library=DBMSSOCN;");
conn.Open();

Is the server with SQL potentially set up to not allow remote access
with out windows authentication? For instance,

Client A is executing the above code
- Conn.open causes a socket to be openned on server B
- Server B is configured to challenge
- This causes server A to respond with its credentials: ASPNET user
from server A
- Server B says: don't know ya
I don't know if it's possible to configure Server B to do that. Ideas?
 
Sure, by default SQL Server only permits authentication via Windows
credentials. You have to enable "mixed mode" security to get it to accept
SQL Server login credentials.

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www.betav.com
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Good point. But SQL Server is in mixed mode. The event log entry
seems to indicate the connection attempt is not making it to SQL server
anyway.

Mark
 
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