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Cannot connect to SQL Server using Windoows authentication;  Login failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection

Posted on 2005-05-09
Medium Priority
Last Modified: 2012-06-21
I migrated a database from SQL Server on my local machine to a network server.  The development web site is still hosted on my local macheine.  When I try to connect to the relocated database, I get the following error:

Microsoft OLE DB Provider for SQL Server (0x80004005) - Login failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection.

I can access the production database (hosted on the same SQL Server) through the the production site (hosted on the same machine as SQL Server).  I have made sure the "anonymous" account from the local IIS has been added to the database, and even specified that my local machine can delegate services (Kerberos only).

My server admin kung-fu is quite weak and I am in need of a master :-)
Question by:pwilliams01
  • 2
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LVL 21

Assisted Solution

Kevin3NF earned 500 total points
ID: 13962545
user (null) generally means that the authentication is getting horked somewhere between your page and the SQL Server....you are looking in the right place

>>server admin kung-fu?<<  You been watching "The Core" ? :-)
LVL 38

Accepted Solution

Jim P. earned 500 total points
ID: 13962977
Does the user/group exist on the new SQL Server?
EM -> MS SQL Server -> SQL Server Group -> %Server/Instance% -> Security -> Logins

Did you run sp_sidmap?

Author Comment

ID: 13963401
Kevin3NE: You're right - I was close, but not at the core :-)

jimpen: The user exists in the network SQL Server, but I did not run sp_sidmap.

All: I found a solution, but it wasn't the one I would have liked.  The anonymous account was based on a login using Windows authentication.  I deleted the login and user, built the login using SQL authentication (account and password) and added the user back based on the new login.  Access has been restored!

I would have prefered connecting through a "pure" windows authent., but I can live with this, for now.  The new login is based on my local IIS anonymous account, which can only access the development dbase:  a potential security leak, but limited mostly to my own coding blunders.

Unless someone out there can guide me to NT authenication nirvana (in the next day or two), I will split the points between Kevin3NE and jimpen.

Thanks all!

LVL 38

Expert Comment

by:Jim P.
ID: 14129939
Well, if you look at the author's last comment--
"Unless someone out there can guide me to NT authenication nirvana (in the next day or two), I will split the points between Kevin3NE and jimpen."

Pretty much shows how he was going on the points.

Author Comment

ID: 14143675
I am sorry about forgetting the awards ceremony.  My bad!

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