Can Not Connect To SQL Server 2000 On Windows Authentication Mode
Dec 20, 2006
Hello everyone,
We have SQL server 2000 on windows 2000. From our desktop MS Access was connected to database through ODBC. Since yesterday (after our consultant had updated another asp application in the same server) we are getting €œSQL Server Error: 18452. €¦.. Login failed for user €˜(null)€™. Reason: not associated with a trusted SQL Server connection. €œ
The consultant saying he did not touch any settings on server (?). And the problem is even server€™s security property shows it has mixed mode authentication. But I cannot connect to server even through my SQL server enterprise manager in windows authentication mode. I can connect if I use SQL server authentication. Through ODBC I can connect also and test fine, if I use SQL authentication. But the Access application wouldn€™t connect using SQL authentication in ODBC.
So, can any one help me to find out what else could be done to make sure that the server is going to accept windows authentication. I€™m thinking any other settings or registry change €¦ etc. Please help.
Just spoke w/ our network admin and he mentioned that we use SPI, so being brand new to ASP, i did some googling and found this string:
the username and password is the account i have for the database, which is windows authentication, so i made sure the domain was in there. i am unsure of what i am doing wrong.
I just upgraded from Windows XP Pro to Windows Vista Bussiness and tried to reinstall SQL Server 2005 Developers Edition. After the installation i downloaded (using microsoft windows update) and installed all the service packs for sql and vista available.
My problem is when i open sql server management studio and try to connect to my default instance using windows authentication and database engine, an 18456 error occurs.
I enabled all the protocols and all the ports I disabled windows firewall and antivirus (eset nod32) I installed all service packs available I have also installed Visual Studio 2005 without installing sqlexpress
But nothing happens!
Please i am very desperate, any information will be gratefully accepted.
This is my installation Information
Code Snippet
Microsoft SQL Server Management Studio 9.00.3042.00 Microsoft Analysis Services Client Tools 2005.090.3042.00 Microsoft Data Access Components (MDAC) 6.0.6001.18000 (longhorn_rtm.080118-1840) Microsoft MSXML 3.0 5.0 6.0 Microsoft Internet Explorer 7.0.6001.18000 Microsoft .NET Framework 2.0.50727.1434 Operating System 6.0.6001
Hi there,I have installed MS SQL Server 2005 on my machine with windows authentication. But now I want to switch the authentication mode to SQL Authentication. I am unable to switch, I can’t find the proper way to do so here in 2005.Could any one help me in doing this?Thank you,-Ahsan
Can someone point me at an article that tells how to allow the ASP.net worker process to connect, via windows authentication, to a remote sql server instance ?
I am trying to create a query that can determine if a user id is using mixed mode/windows/both authentication. I need to do this so that it can run on both sql server 2000 and 2005, meaning I can't use any of the sys.* views. Is there a single query could use for both systems? -Kyle
We have see login failures for windows accounts. Below is the error message.
Description: In our env most logins are windows accounts. Initially we thought it is an UAC issue and we tried to launch the SSMS using "Run as Administrator". However, we are seeing login failures.
Enviroment: Microsoft SQL Server 2014 - 12.0.2402.0 (X64) RTM Enterprise Edition (HyperVisor)
Error Message in Error Log :
2015-08-10 22:36:45.290 Logon Error: 18456, Severity: 14, State: 11. 2015-08-10 22:36:45.290 Logon Login failed for user 'domainloginname'. Reason: Token-based server access validation failed with an infrastructure error. Check for previous errors. [CLIENT: 10.xxx.xxx.xxx]
[code]....
We tried dropping this account and re-creating the windows account with same permissions but still result is same. It throws same error message. Login failure message !!!
If i create a database in sql express in windows authentication mode, the database owner is in the format of 'MACHINENAMEUSERNAME'. If i connect this database to iis server i got login failed error message.
This is my connection string in my web.config : Provider=SQLOLEDB.1;Integrated Security=SSPI;Persist Security Info=True;Initial Catalog=dbsgh;Data Source=software92sqlexpress
I solved this problem by creating a login in sqlexpress called 'software92/aspnet' and creating a user for my database named aspnet under 'software92/aspnet' login. Then i changed the usrename in directory security of my iis virtual directory to 'software92/aspnet'. This solves my problem. But i think i m solving this problem in a wrong way. I think i should create that database under default owner. Who is the default owner?
I dont know the correct procedure to solve this. Please help.
Logins failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection. (microsoft SQL Server, Error: 18452)
Hi Guys.
How are you, its something very complicated to understand my issue. i am receiving the above error message when i tried to login with using windows accout to connect to SQL server Instance using client tool.
ok Let me start step by step. 1) Initially we have one box using windows 2000 (OS) and having SQL Server 2000. 2) Here on SQL Server instance i have created windows account login and gave permissions to one of the database on that instance. 3) this windows account is in the right domain and also in the same domain 4) when i right click on Management Studio on the different machine --> Run As--> enter the windows account --> select the above Sql server instance.then connect 5) Here i am not able to connect to the sql server. the below error generates when i press the connect button Logins failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection. (microsoft SQL Server, Error: 18452)
if we gave the full permission to connect to box with this windows account then i am able to connect the sql server instance, otherwise its not allowing me to connect to the Sql server instance.
we have another box using windows 2000 (OS) and having SQL Server 2005. i have followed the same as above with same windows account login. Here i am able to connect to the SQL Server Instance and also this windows account donot have permission to connet the box.
Anybody have idea about this issue??? if the SQL server 2000 doesnot have the option to connect remotely. unless that windows account have the full permissions to box. if you have any white paper please let know. i really appreciate for your effort, if you dont understand please let me know. thanks so much.
I need to change the authentication mode from 'windows' to mixed, its a 4-node participating in always-on... Will this brake/impact alwayson in any way? I know I have to restart the sql instance.
I'm trying to connect to a database using my virtual machine, where I´m logged in as another user than the one that's granted acccess to the database. Can I enter the windows username and password used to connect to my SQL 2005 database, in Windows Authentication Mode?
I am not able to connect to SQL Database server using windows authentication when I am connected through VPN connection.However I am able to connect to same server using SQL server authentication and also able to do RDP to DB server machine.
I found a resolution in one of the forum suggesting to change UserRasCredentials to 0 value in *.pdk file.Since VPN connection which I am using generates instant proxy this resolution doesn't work.
Also application which I am using does windows authentication connection it is required for me to impersonate windows authetication when connected using VPN.
As the topic said, my sql server 2000 installed on windows xp sp2, the computer's name is "ADMIN" and the server 2000's name is "ADMIN".
When i startup the sql server 2000, it just listening on shared memory and name pipes, not including the "TCP/IP" . So i can not connect to the sql server using the port 1433.
Some people said that the reason was the system's firewall. I also found some supports on the websites 'www.support.microsoft.com'. It said that you can set the port 1433 or the sqlservr.exe to the execption. I also do that, but still not works.
Is there any things i forget and how can i solve the problems! Thanks for advances.
I'm working on deploying an ASP.NET 2.0 app onto a Windows 2003 server and I'm having trouble with SQL 2000 authentication. When I run my app from my development box running IIS 5.1 I have no problems. In order to get it to work on my this machine, I had set the account for anonymous access to run under an ASPNETDOMAIN account and configured my SQL database to allow this account.On the Windows 2003 box with IIS 6.0, I've done the same thing with anonymous access for the web app, and also created an application pool that the app runs under and have set the application pool to run under the same account. It appears the app is looking for a local SQL 2005 instance (which doesn't exist). Why would it do this and what do I need to change for this to work?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: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)Stack Trace:[SqlException (0x80131904): 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: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)] System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +735043 System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +188 System.Data.SqlClient.TdsParser.Connect(Boolean& useFailoverPartner, Boolean& failoverDemandDone, String host, String failoverPartner, String protocol, SqlInternalConnectionTds connHandler, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity, SqlConnection owningObject, Boolean aliasLookup) +820 System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance) +628 System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance) +170 System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection) +130 System.Data.ProviderBase.DbConnectionFactory.CreateNonPooledConnection(DbConnection owningConnection, DbConnectionPoolGroup poolGroup) +27 System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +47 System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +105 System.Data.SqlClient.SqlConnection.Open() +111 System.Web.Management.SqlServices.GetSqlConnection(String server, String user, String password, Boolean trusted, String connectionString) +68
Hi, I am having a problem connecting my .net applications from the application server to the database server. When I run the application from my windows xp (sp2) box it works fine. When I try to connect via SQL Management Studio to the database server from the application server I get the same error. Here is the error: System.Data.SqlClient.SqlException: 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) Here is the Environment: App Server: Windows Server 2003 Standard Edition Inside Company's Firewall/ Network Database Server: Windows Server 2000 Advanced Edition SQL Server 2000 SP4 Remote Connections to the Server is checked Enable Protocols: Named Pipes & TCP/IP TCP/IP Port: 1402 (I don't know why it isn't the default of 1433) The db server is sitting out side the Company's firewall (don't ask me why). I can access it fine from inside the firewall on my XP box but not from windows server 2003. There is a web server outside the our network that also connects to the db server with no problem and that is running Windows Server 2003 Web Edition. I can ping the db server from the app server using the IP address. I tried using the IP address and the port 1402 in my connection string but that didn't work from any machine (XP and Server). I imagine the issue is somehow related to the company's firewall but why would it only block Windows Server 2003 and not XP? What do I tell the network admin to change? Any help would be appreciated. Thanks, Oran
For using different services of SQL SERVER 2005 which is better... Windows Authentication or SQL Server Authentication? what are the advantages and disadvantages of both?
I installed SQL Server 2005 using Windows Authentication Mode (Windows Authentication)"
How can I change the Authentication Mode of the SQL server from "Windows Authentication Mode (Windows Authentication)" to "Mixed Mode (Windows Authentication and SQL Server Authentication)"?
Having problems connecting to SQL Server Express using 'sa' account and having read threds re problem and MS, advice is that Authenticaion mode needs to be set to both Windows and SQL. I have studio express installed and go to Security from the properties of the Server to change this option to use both authentication modes, however the options are greyed out!
Can anyone advise pse.
And will amending this option help me to enable the sa login which is refused at the moment, error as follows:
Login failed for user 'sa'.The user is not associated with a trusted SQL Server connection
I wonder if it is possible to set forms authentication for report manager but leave report server "as it is". I need to authenticate users from external LDAP and can't use windows authentication for report manager, but I would also like to leave report server open for anonymous users. In that way authenticated administrators could create reports which anonymous users could read.
I tested the Security Extension Sample and got it working when I rewrote the authentication part with my own LDAP authentication.
If I have understood correctly, the report manager is just application inside report server so is it possible to use forms authentication with one application but still leave the report server with Windows authentication?
I was trying to transfer a SQL Server 2000 database to SQL Server 2005 using SQL Server Objects Task. However, The following error message was encountered: "[Transfer SQL Server Objects Task] Error: Execution failed with the following error: "Cannot apply value null to property Login: Value cannot be null..".€œ
I have just created some SSIS package. Some package has connection to remote SQL Server 2005 by SQL server authentication mode (not windows).
In the connection property I have setted "save my password", but I have found that after a while the connection is missed and I have to make the Logon. this happen always to random.
Do you know how to keep the connection persistent?
I have a SQL 2005 OTC. CTP version running on Windows 2003 server.
I would like to find out how the SQL server option changed to Windows Authentication mode from Mixed mode over the weekend. From the SQL log, I don't see when it changed. I would like to see Date/Time and client IP. If I can see User ID (windows) that would be great. Where I can find these info in SQL server?
I am new to the whole ASP .NET scene, so my knowledge is very limited, and if I’m not clear enough please let me know. I am reading a book published by APress about ASP .NET with C# and I am at the point where I get to begin working with data (fun!!). The problem is that I’m not able to connect to the SQL Server. I have Server 2003 and SQL Server 2005 running on a separate machine than the computer that I use for development – the server is named THESERVER, the SQL server is named THESQLSERVER, and the computer I use for development is my laptop named MYLAPTOP. So here’s my connection string (I put this in my web.config XML file):<add name="Pubs" connectionString="DataSource=THESERVERTHESQLSERVER; Initial Catalog=pubs;Integrated Securit=SSPI"/> Now here’s what my book reads: For Windows authentication to work, the currently logged-on Windows user must have the required authorization to access the SQL database. This is all it says about Windows authentication because the book assumes that I am running MS SQL Express off localhost. Questions: Does the book mean that I will have to add a user to my server for my laptop? If so, how do I log into this user using the connection string?What does it mean by “the current logged-on Windows user”? Is that referring to the user on my laptop, or a user on the server? I’ve been reading around trying to find more information on exactly how Windows authentication works, but I keep coming up dry. I know that much of this is probably trivial to a lot of you, which is why I am asking because it isn’t to me. Well, thanks in advance for any help that you can provide me.
I have an asp.net page which accesses a sql server database (on another server). I am trying to use impersonation to impersonate the domain user accessing the page and use the credentials to access the sql server using a windows login. I have windows authentication checked in IIS settings am using the following web.config:<configuration> <system.web> <authentication mode="Windows" /> <identity impersonate="true"/> <authorization> <allow users="*" /> </authorization> <customErrors mode="Off" /> </system.web> </configuration> I can connect fine when i open the page on the IIS server but from other machines, whilst logged in as the same domain user I get the error: Login error failed for user ''. Anybody know what the problem might be?
I'm writing some software for clients and the connection is done via de username passwd methode, not windows authentication. One of the salespeople is creating FUD now, talking about a "major security leak" because, if someone has the username / password, he can view the data in the mssql database. ( seems normal to me for a username/password combination - winNT or not - but this news can be shocking to the uninitiated) Is there any paper on his comprehensionlevel that deals with this issue? Or you've got an opinion on this?
