Windows Authentication - Cannot Generate SSPI Context - Login Failed For User ''. The User Is Not Associated With A Trusted SQL
May 29, 2007
We are looking at developing an SQL Server 2005 Database and I would like to use Windows Authentication rather than SQL Server Authentication to connect our client app.
In our development environment, we have two Servers, one being used as a file server and the other as an SQL Server. We have now set up a domain using the file server as the domain controller. (We had previously been set up to use a workgroup).
I have set up an active directory group called SqlDevelopers and added an active directory user called Jonathan to it.
On the SQL Sever, in management studio, I have set up a new server login which uses windows authentication called DomainSqlDevelopers. I used the GUI to verify I could see the domain and the group.
The default database is set to a test database on the server. A user in the test database is mapped to the DomainSqlDevelopers and given the Roles dbo, db_datareader, db_datawriter.
To test the log in, on the server, I logged out as administrator and in as Jonathan. I could successfully access the server through management studio using windows authentication.
However, if I log in as Jonathan on my client PC and try to access the SQL Server using management studio and windows authentication, I have problems.
The first time I try I will get a timeout error. If I try again will get either:
Login failed for user ''. The user is not associated with a trusted SQL Server connection
Or
Cannot generate SSPI context
I can€™t determine any pattern to which of the above errors I get.
However, if I log in as administrator on my client PC, I can connect to the server using management studio and windows authentication.
Sounds like Active Directory/Domain or other Network issue (Not really my area). I would be grateful for any help.
I'm working on an ASP.NET project, and we're attempting to switch from SQL Server authentication to Windows authentication to connect to the database. It works fine locally when I debug in Visual Studio, but when it hits the web server, I get the error: "Login failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection." IIS has anonymous access disabled, and Integrated Windows Authentication is checked. The web.config file has: <authentication mode="Windows"/><identity impersonate="true"/> The database I'm attempting to access is on a different machine than IIS, and the connection string doesn't contain a username or password, and has "Trusted_Connection=Yes", and "Integrated Security=SSPI". From what I've been able to find online, I'm guessing the problem is due to IIS and SQL Server residing on different machines, but I'm not sure how to fix it. Any ideas?
Hi-- I am building an intRAnet website using windows authentication for website access and SQL Server access ( Trusted_Connection = true ). In IIS I have these settings:
Allow Anonymous = unchecked (false) Windows Authentication = Checked (true) Digest windows = checked (true) In my Web.Config file:
authentication="windows" impersonate="true" allowusers="*" When I pull up the page these are my credentials: Security.Principal.Windows: mydomainmyuserid (this is correct what it shows on my page) Me.User.Identity: mydomainmyuserid (this is correct what it shows on my page) Threading.currentThread.currentUser mydomainmyuserid (this is correct what it shows on my page)
So the ASP.NET page recognizes it is me and my domain. However, when i click a button to pull some data from a database I get the error message: Login failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection. My data access on SQL Server works fine. The weird thing is when I debug on my machine it pulls data fine. but when I copy the files to the windows 2003 server it doesn't work. Do i have to do something with delegation?
Hi, I have a copy of VS2005 and i have installed the Microsoft SQL Server Developer Edition I am trying to do my first connection using ASP.net (yay for me...) and it has failed...with this error..Login failed for user 'testuser'. The user is not associated with a trusted SQL Server connection.
can someone please point out why? yes i know that the error seems pretty straight forward but how do i fix it? like how do i make the user a trusted server connection? where do i do it? and what are the steps? the user is an administrator and by rights should have all access to everything....
connection string
SqlConnection MySQLConnection; MySQLConnection = new SqlConnection("server=cmptrname\databsename;uid=testuser;password=password;database=mytest");
btw while your reading do you have any examples of opening a db with the connection string in the web.config file? because i get some error "connection string has not been initialised" using the system.Configuration.ConfigurationManager.AppSettings.Get i though i would stick to the top code first before i tackled the web config error first....
All the research I found dealing with this problem is that the solution is to set SQLserver to mix mode. I have SQL server already set to mix mode. I am not sure what else to do. Has anybody run into this problem? my connection string: <connectionStrings> <add name="ConnectionString" connectionString="Data Source= server name ; Initial Catalog=FILESHAREDB.MDF; Integrated Security=false;"providerName="System.Data.SqlClient"/> </connectionStrings>
Server Error in '/SendItNow' Application.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Data.SqlClient.SqlException: Login failed for user ''. The user is not associated with a trusted SQL Server connection.Source Error:
Line 41: Line 42: 'open the connection and execute the stored procedure Line 43: mConnection.Open() Line 44: mResourceID = mCommand.ExecuteScalar() Line 45: mConnection.Close()Source File: H:MIS DepartmentIntranetSendItNowApp_CodeDalResourceDB.vb Line: 43 Stack Trace:
Hi all, I am new in asp.net. In my web.config file, I wrote the connection strings as below and then I got the above error. I already changed SQL server Authentication mode to "SQL server and Windows". Any idea? Thanks in advance. <connectionStrings> <remove name="LocalSqlServer" /> <add name="LocalSqlServer" connectionString="Data Source=xxx;Initial Catalog=mydb;User ID=test;Password=test;Persist Security Info=False;" providerName="System.Data.SqlClient" /> </connectionStrings>
Our server has integrated security setup, upon startup of the server, we have a continuous flow of error msg: Login Failed: Reason: User '_' not defined as a valid user of trusted connection. The timing of these messages only around 30 seconds apart The only incident from Technet I can find is Q186314, but we don't have replication setup, anyone knows where I can look into ? I recycle the server but didn't help. I appreciate any help I can get .. Thanks.
We have setup a SCOM 2007 Server and in this we have SQL 2005 SP2, We are using two accounts one for OPRATIONAL DATABASE and another one for REPORTING DATABASE after this setup everything was working fine but suddenly my SDK account which is for REPROTING DATABASE was locked by entering wrong password and afterwards I unlocked the password but SINCE this i'm not able to connect to my REPORTING DATABASE and i'm getting following ERROR:- Login Failed for user 'username'. The user is not associated with a trusted SQL Server connection.
Taken following action to rectify this problem: 1) Resetting the SDK password with the same password. 2) Restarted all the SQL and SCOM services. 3) Restarted the Server as well. 4) Converted from WINDOWS AUTHENTICATION mode to MIXED mode.
But the problem is still persisting, Please help ASAP.
I received the above error yesterday and haven't been able to trace it to any job or process running. We haven't implemented any changes to the server in the past few months, and it doesn't look to be a user-established connection, since the Client IP Address of the SSPI handshake error is from the server itself.
I logged this set of messages in SQL AgentServer error log:
Date 10.03.2008 6:15:19 PM Log SQL Server (Current - 11.03.2008 2:32:00 PM) Source Logon Message SSPI handshake failed with error code 0x80090304 while establishing a connection with integrated security; the connection has been closed. [CLIENT: <IP Address>]
Hi all, Can someone explain it to me why I am getting the following error when I try to connect SQL server express with .NET 2.0?
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Data.SqlClient.SqlException: Login failed for user ''. The user is not associated with a trusted SQL Server connection.Here is my code and i am using windows authentication: <%@ Import Namespace="System.Data" %><%@ Import Namespace="System.Data.SqlClient" %> <% Dim connAkaki As SqlConnection Dim cmdSelectAuthers As SqlCommand Dim dtrAuthers As SqlDataReader connAkaki = New SqlConnection("Server=.SQLEXPRESS;database=akaki") connAkaki.Open() cmdSelectAuthers = New SqlCommand("select Firstname from UserTableTest", connAkaki) dtrAuthers= cmdSelectAuthers.ExecuteReader() While dtrAuthers.Read() Response.Write("<li>") Response.Write(dtrAuthers("Firstname")) End While dtrAuthers.Close() connAkaki.Close() %>
I've seen many, many, many, many posts regarding this topic - but none have been able to fully explain nor fix my problem.I've developed a security solution according to Scott Gu's guide and it works great - but only on my local machine running VWD and SQLExp2005. Once I move this application it completely breaks in the productions environment. Today I managed to get it halfway there. I created a SQL login and changed my web.config to use these credentials - now the web application will come up, but none of my links (that are role based) are displayed - most likely because i'm authenticating as the SQL credentials instead of me. So I switch it back to windows authenticated, as it is on my laptop, and it breaks again. Please tell me theres a way to get this working in production and Scott's fantastic tutorial hasn't wasted me 2 weeks of work. Here's the exact error I get when using Integrated authentication: Server Error in '/Contracts' Application.
Login failed for user ''. The user is not associated with a trusted SQL Server connection. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Data.SqlClient.SqlException: Login failed for user ''. The user is not associated with a trusted SQL Server connection.Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Stack Trace:
Hello, I just got a copy of a website I was supposed to be working on. I went to the web.config file changed the machine name to my machine's name and when I try to run the program I get the following error. Could someone give me some advice on how to fix this ? Thanks!
Hi I'm making a website and will upload it next via ftp but i need to access the local server for database retrieval from this website. i'm doing so first time so not sure about its working and isues. Through google search and from forums i collect some info to work on it. now i have made a connection string to access remotely that gives the following error when i make the connection open "Login failed for user ''. The user is not associated with a trusted SQL Server connection." the local server use the windows authentication mode or may be the mix mode. Please any one can help me about this issue and further information related to it. and one more question, how much time a page takes to load while getting 600 records from a table in local server. thanx in advance
Arrgh! I've check and to make sure SQL Server and Windows Authentication option is selected. The user has Grant access to connect to database engine and Login is enabled...and also has database read/write privs. I can login using the username/password from Mangement Studio Express, but I can't from my app. Here is my web.config: <connectionStrings> <add name="CPT_ConnectionString" connectionString="Data Source=192.168.1.40ccsql1;Integrated Security=SSPI;" providerName="System.Data.SqlClient" /> </connectionStrings> <system.web> <identity impersonate="true"></identity> </system.web> The only thing I can think of is that my app is using a DSN to connect to the database. Any ideas? Many thanks, Mark
How to handle "Login failed for user 'sa'. The user is not associated with a trusted SQL Server connection." when i was access to web page. I want to on sql server authecation mode.
hello i am working on a web application where the application and data base are not on the same serverso when trying to connect to the data base from the web application using windows authentication i got that errorLogin failed for user ''. The user is not associated with a trusted SQL Server connection. when i used user id and password the problem solvedcan any one tell me how to make my application run using windows authenticationone thing else ;this problem raised after another issuse came from the network that the server is not able to resolve the address or ip of the serverbut that problem solved suddenly and left the above issue
I have a windows 2003 server hosting MS SQL Server 2005. Another windows 2003 server hosting my App, and clients from the local intranet and outside (web). How do I surpass this problem, when it all works fine locally on my development machine?
We are wanting to use SQLEXPRESS in a workgroup called REALITY, no servers just PCs. I have four PCs in this workgroup and need them all to share the same database from one of the PCs. I can share folders and map a network drive but can not connect to the SQLEXPRESS database remotely.
I have set server authentication mode to Windows and SQL and have enable local and remote connections (TCP/IP only) in the surface area. After making these modifications I was able to connect to the database through the SQL Server Management Studio Express after I enable the guest account. When I first started I had numerous connection errors and have worked through them all by performing the above and was only finally able to connect after enabling the guest account and adding said account to the SecurityLogins. However, today I am unable to connect I have double and triple checked the settings and still continue to receive the same error.
I installed SQL Server express edition on my corporate desktop computer which is part of a Domain. When I installed it I set it up for mixed mode so I could log into SQL server directly or use Windows authentication. I use the management studio and log into the server using the sa account which I have added a password for but I can not log in using the Windows authentication. The error in the subject line of this post was copied directly from the error log as you can see the user name is null.
The following is more of the same log file it seems to start with the SSPI handsshake error. Does anyone know how I can troubleshoot this error?
2007-08-16 17:37:21.76 Logon Error: 17806, Severity: 20, State: 2. 2007-08-16 17:37:21.76 Logon SSPI handshake failed with error code 0x8009030c while establishing a connection with integrated security; the connection has been closed. [CLIENT: 10.246.108.98] 2007-08-16 17:37:21.77 Logon Error: 18452, Severity: 14, State: 1. 2007-08-16 17:37:21.77 Logon Login failed for user ''. The user is not associated with a trusted SQL Server connection. [CLIENT: 10.246.108.98]
I am trying to login to SQL Server 2005 using SQL Server authentication using 'sa' account but it gives the below error
'Login failed for user 'sa'. Not associated with trusted SQL Server Connection'
The authentication mode set for the server was 'Windows Authentication' so i tried to change that to SQL Server and Windows Authentication but it didnt allow me to change the mode. It gives the below mentioned error.
"An exception occured while executing the Transact SQL or Batch Statement. Execute permission denied on Object 'xp_instance_regwrite' , database 'mssqlsystemresource',schema 'sys' "
Could you anyone kindly let me how to resolve this issue so that i can connect to the SQL Server using sa account.
Can someone explain it to me why I am getting the following error when I try to connect SQL server express with .NET 2.0?
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Data.SqlClient.SqlException: Login failed for user ''. The user is not associated with a trusted SQL Server connection.
Here is my code and i am using windows authentication:
I have 2 servers. On one server i install sql server 2014 and its working fine, i am able to get connected with sql with domain account.
From second machine i want to connect my sql server, for that i create udl file when i give sql server address and click refresh getting following error: Connection failed cannot generate SSPI context
Firewall is off, created fire rule too, i am able to get ping first machine by ip and servername but still getting issue.
We have a SQL 2000 Active/Passive cluster running on Windows 2000. On one node, everything logs in fine (second node is powered off). I can use local authentication fine in OSQL (-E) and even see my connection in SQLEM current activity as [DomainUser] for the NT account which I am logged in as. Then I bring the second node online and initiate a failover. SQL Server starts but Cluster Admin cannot connect and starts throwing this Anonymous Logon error. I open a command prompt and try the same OSQL (-E) local login and sure enough it is also giving the Anonymous Logon connection user. I do not understand why the failover to a second node is causing the Trusted Connection Local authentication to switch to Anonymous instead of the [DomainUser] which I am using. Any help is appreciated. John.
Hi-I have a program that I am developing on a laptop, then deploying it on a server.I have the prgram running passing a username and PW in the connection object, but like the idea of using windows authentication MUCH better.I just joined the domain, so I am domain/me for example.If I log into the server, and look at securities, logins and added domain/me to the logins.I then try and set up a sql connection via both visual studio, and sql server magt studio, and get the dreaded "Cannot generate SSPI context" error. Anyone else have this problem? SHOULD V.S. be using domain/me to connect? TIA dan
Login Failed for user , the user is not associated with a trusted sql server connection. (microsoft SQL Server,Error:18452)
hi , i am getting the above error message once in a while maybe two or 3 times a week , and then it goes away in 10 to 15 minutes or 5 minutes ,
our mode is set to mixed and we are able to connect and use both sql and windows , but once in a while , it will give us the above message when we try connecting throught sql server management studio client (using sql 05) using windows login , although it lets us connect using sql login while the windows login is denied, and after a while it lets us connect with both.
occurs randomly on some days , we run our servers on VM ware virtual machines using windows 2003 r2 enterprise 64 bit with sp2 with esx 301 virtual machine.
Last week I was receiving an error when trying to connect to two of our seven sql servers from my laptop via my domain admin account. The only fix was to have my laptop rebuilt and everything re-installed.
Today however another administrator is starting to have the same problem but to only one of the seven servers! When that administrator uses my laptop with her domain admin account it works!?
What could possibly be going wrong with our laptops? We have not installed or changed anything.
The full error message we see:
Login failed for user ''. The user is not associated with a trusted SQL Server connection. (Microsoft Sql Server, Error: 18452)
The error being logged on the server: (two errors are logged each time)
SSPI handshake failed with error code 0x8009030c while establishing a connection with integrated security; the connection has been closed. [CLIENT: 53.35.165.148]
Login failed for user ''. The user is not associated with a trusted SQL Server connection. [CLIENT: 53.35.165.148]
Can anyone give a quick description of the meaning of this message andwhat needs to be done to get a connection.I'm running DBArtisan with SQLServer 2000 client SP4 installed.I also get the same message with MS Enterprise Manager so this iscoming out of the actual ODBC connection attempt.Thanks in advance!
