Cannot Connect To Server Through Ssms - Cannot Generate Sspi Context
Aug 1, 2007
Hi,
I have gone through so many kb articles to understanding the problem, but no luck as yet.
Here is the situation:
I have two dev servers : Server A and Server B. Both are set up in an identical fashion. Windows 2003 sp2, Sql Server 2005 sp1 Developer Edition, both are on the same domain, Both have all the three protocols enabled: Shared Memory, Tcpip, and Named Pipes in that order. I can ping both servers, and telnet using the default port. Both have only default instances. Both use the same domain user account for sql service. Both have the error in the log saying that spn could not be registered so authentication may fall back to NTLM.
Here is the issue: When I try to register Server A specifying tcp-ip connection, I am successful and I can see that the authentication is NTLM - is as expected. since the spn registration did not happen and since the sqlservice account is not a domain admin, the authentication used NTLM over tcp-ip. However, I try to register Server B specifying tcpip, I get a cannot generate sspi context error. Why did the authentication not fall back to NTLM as in Server A? From what I read in the KB articles, I asked our network admin to check up the spn, but he assures me that spn were never manually registered.
Our end users is getting below error, when they try to connect to our database:
"Cannot generate SSPI Context."
That is Windows based application and we have done everything like restart our DB Server , reinstall exe in users system, but still issue is same.The issue has occured from when DB Server has restarted and at the same time few users are connected. before that it was working fine. we could not find what is issue.
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
I was trying out the Building an End-to-End Application (VB.Net) exercises on Web Matrix Guided Tour and encountered the mentioned errors. Please help. Thanks.
' TODO: Update the ConnectionString and CommandText values for your application Dim ConnectionString As String = "server='WRPBI'; user id='sa'; password='sa';database=MatrixOrders;Integrated Security=SSPI"
Dim CommandText As String = "select OrderID, OrderDate, CustomerName from Orders"
Dim myConnection As New SqlConnection(ConnectionString) Dim myCommand As New SqlDataAdapter(CommandText, myConnection)
Dim ds As New DataSet() myCommand.Fill(ds)
MasterGrid.DataSource = ds MasterGrid.DataBind()
End Sub
Sub BindDetailGrid()
' get the filter value from the master Grid's DataKeys collection If MasterGrid.SelectedIndex <> -1 Then
' TODO: update the ConnectionString value for your application Dim ConnectionString As String = "server='WRPBI'; user id='sa'; password='sa';database=MatrixOrders;Integrated Security=SSPI"
' TODO: update the CommandText value for your application Dim filterValue As String = CStr(MasterGrid.DataKeys(MasterGrid.SelectedIndex)).Replace("'", "''") Dim CommandText As String = "select OrderDetailID, ProductName, Quantity, UnitPrice from OrderDetails where OrderID = '" & filterValue & "'"
Dim myConnection As New SqlConnection(ConnectionString) Dim myCommand As New SqlCommand(CommandText, myConnection)
Cannot generate SSPI context. 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.
All of a sudden I cannot connect to sql server from Visual Studio. Nor I can't conenct to Sql server through IIS and it gives me the same error saying "Login failed: Cannot Generate SSPI Context". Lots of my development projects got stuck because of the SSPI Issue. I know there was a network upgrade from Windows NT (users) to Active directory. I can only access the sql server from the host machine.if someone can guide or give me a quick run down on things to look for that would be wonderful.
HiMy company uses a Windows 2000 server with MS SQL Server 2000.We have many clients with administrative software that use the MS SQLserver, the problem is that we experimented randomly the error"Cannot Generate SSPI Context" and the only way to work with DB is logout the client.I'm looking the MS Technical sheet but there's no resolving hints thatcan help.Anyone has a similar problem ?Thanks.
Win Server 2003 SQL Server 2000 SP4 SharePoint Server
Win Server 2000 (Domain Controller / Active Drectory)
Clients: Win XP / Access XP
I have two clients that can access the SQL Server and one that can not. All clients can access SharePoint (SLQ Server Back end) and directories controlled by AD.
The one that cannot access the SQL Server errors: "Cannot Generate SSPI Context". I have verified: 1) date and time 2) occurances of Security.DLL (win/system32; program file/common files/AOL...; Service Pack Files/i386 (x2)) 3) Not using cached credentials
we recently moved our network and did not change any settings on any of the computers. I read KB811889; those suggestions did not resolve the issue.
Please assist me in touble shooting this connection problem. Also, how does changing the SQL Server Port on the server affect SharePoints connection to its database?
I have a SQL Server 2000 in a specific W2K server, that belongs to a domain that is administered by a W2003 server.
There is a client that has a new computer with WXP in the same domain. It used to have an old machine with W2K pro. and with the same user it worked OK.
When accesing SQL from the client with an Office2003 application via ODBC with windows authentication, after several minutes working OK, suddenly it gets this message:
Conection error. SQL state: S1000
Cannot generate SSPI context.
In the client I have executed cliconfg.exe and created a piped name protocol, but still it won't work.
Firstly, I have read through so much information on this, that my eyes are starting to bleed and I am right at the end of my rope with it all..
This issue has only started showing since I re-installed my dev box, so my server has not changed at all..
Server is 2003 with SQL 2005.
Dev box is
Vista (Ultimate)
Visual Studio Pro 2005..
A quick but painful solution is for me to log out of my box and then back in, but this is unworkable at times... about the only difference I can think of this install from the last is that now I have also installed SQLExpress on the dev box. I have gone into services and made sure that the service does not start auto. I have connection to the server and am running as administrator on both until such time as I can sort this out, but the error still occurs.
Authentication for the dbase is both windows and credential.
Can someone please give me a stratight out solution for this.
I'm signing into a sqlexpress 2005 local server using windows integration and it fails with a "Cannot generate SSPI context". After 2 years of working with this, it just started to happen after I installed a new piece of software to test. My colleague thinks it hosed our domain names. I've read all the articles and most of them have to do with a non-local server. I also read that this is caused with TCP/IP so I disabled it for sqlexpress and tried again. Then I get "An error has occurred while establishing a connection to the server. When connecting to the sql server 2005, this failure may be caused by the fact that under the default settings sql server does not allow remote connections." I know I have remote enabled so that isn't true. If it uses VIA, "Login failed for user '(null)'. Not a trusted sql connection" or something like that. Anyway, I think something is hosed in my domain and my colleague fixed it by downloading some xp tool that he can't remember where it came from. Any chance anyone else knows about this tool?
hi, While trying to connect to SQLSever 2000 or SQLSever 2005 from a vb.net application , a user is getting the error "Cannot generate SSPI context" while other users can still connect to the server. and moreover, this user were able to connect before. and if he restarts his computer, then try to connect after a lap of time, it will connect. but if he waits and opens other applications,and then tries to open the application,it will not work.
Hi, I have a MSSQL database running in a Microsoft cluster. I was working on troubleshooting for another SAP problem when they suggested I change the setting using hte SQL Server Client Network Utility to 'named pipes' from 'tcp/ip'. Every since, despite changing it back I'm unable to start the database in the cluster.
I'm kind of a newbie at this so I'd really appreciate any help in getting this database up and running.
Here is the error message from the event log: sqsrvres] checkODBCConnectError: sqlstate = HY000; native error = 0; message = [Microsoft][ODBC SQL Server Driver]Cannot generate SSPI context
I regularly (every month or so) get the error "The target principle name is incorrect. Cannot generate SSPI context" when trying to remotely connect to my SQL 2012 instance. The SQL service is running using a managed service account. I understand this error can occur when the service account cannot authenticate with AD properly. Looking at the properties of the managed service account, the password for the account was automatically changed this morning - just when the error started.
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.
I am using .net 2 to connect to sql server 2005 - All works fine. When I move the sql server machine date forward (to test the application) the above message is returned.
Any ideas as to why this message is generated when I move the clock forward will be gratefully received.
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.
Hello, I have an XP box with SQL 2k working without any problems. I am trying to install SQL 2005 CTP April on the same machine. Installation goes fine, but when I try to connect, I am getting an error "Can not Create SSPI Context". Why am getting this error ? DOes the machine needs to be on a domain to get connected? If yes, is there a work around? Can I use mixed mode? WhereHow do I specify password for sa?
Hai, I'm having Windows XP SP2 version and I have installed SQL server 2005. Whenever I'm opening SQL server management studio in Windows Authentication Mode I get a pop message indicating that "SSPI context error message". What may be the problem and how to sort it out?
Hai, I usually connect SQL Server 2005 using Windows authentication mode (trusted connection). I have one server to which four client machines are connected and all the clients are windows XP SP2. The SQL Server 2005 I have installed is Standard Edition. When I'm connecting I get a pop message indicating that "SSPI context error message". I have seen the Troubleshooting Article ID : 811889. I was'nt able to resolve it. What may be the problem and how to sort it out ?
I usually connect SQL Server 2005 using Windows authentication mode (trusted connection). I have one server to which four client machines are connected and all the clients are windows XP SP2. The SQL Server 2005 I have installed is Standard Edition. When I'm connecting I get a pop message indicating that "SSPI context error message". I have seen the Troubleshooting Article ID : 811889. I was'nt able to resolve it. What may be the problem and how to sort it out ?
It makes no difference if I'm working with Enterprise Manager, QueryAnalyzer, Access, self written app with OleDb or Visual studio 2003builtin DB manager.Everything is fine but aufter some time - about 30 minutes I getmessage "cannot create SSPI context"After rebooting my machine I can work for another few minutes.Configuration:NB01 is my notebook with Windows XP ProSQL01 is another Windows XP Pro machine with SQL Server 2000 desktopDC01 is the domain controllerall machins within the same domain DOMAIN01The user is a domain admin and has every rightI'v seen some postings for this problem but not one useful idea how toresolve.As it runs perfectly for some time I don't thint it is a DNS problem orsomething like this.As there is no useful error message it must be some kind of bug.Has anybody resolved such a problem?
since over a week I've been looking to find out the reason for two error messages I get from our users and servers, unfortunately without success up to now.
I really hope you can help me.
We are using Win 2k servers with active directory and SQL Server 2000, clients are all Win XP with SP2. Versions of access are 2002 & 2003. The errors are userspecific and occur in both versions. The SQL-Servers are accessed with an adp-file in 2002-format.
We have one usergroup which is member of specially many groups. This affects the size of their windows access token which becomes constantly larger. In order to enable those users to still access their mailboxes on our Exchange servers, the DWORD entry "MaxTokenSize" with the decimal value "65535" was made to the newly created key "Parameters" of their registry branch "HKLMSYSTEMCurrentControlSetControlLsaKerberos ".
Since then those users can not access any of our SQL Servers using the windows authentification. One of them gets the error "[DBNETLIB][ConnectionRead(recv().] General network error. Check your network documentation.", the others the error "Check connection: Failed: Cannot generate SSPI context".
In case of resetting the registry entries (by deleting them), the one user receives the same error message as the rest while it doesn't make any difference to those (but at least they can't connect to their mailboxes).
After having researched the web, I realised in one of the SQL-Servers logfiles the entry "Invalid buffer received from client.." which lead me to start to believe it could have to do something with the kerberos encryption in the first place. Therefore I asked if changes to the tokensize had been made. I applied the change with "EXEC sp_configure 'network packet size', 65535 RECONFIGURE" on our testsystem and "EXEC sp_configure" confirms that the value is run.
Consequence: The entry in the SQL Server log doesn't appear any longer, but the users still receive their error messages.
I am getting the message "Canot generate SSPI context",while i am working in a client system.I hope this is something related to networking.How to solve the problem.I can not connect to SQL Server once i got above mentioned message.
Please give your advice to understand and rectify the problem.
I am getting error once in a while. It can be while either updating/inserting/selecting a record. I may have about 100000 hits give or take a few to the database.
The VB Application identified by the event source logged this Application MODE: Thread ID: 3300 ,Logged: ------------------------------------------------------------------------------------ Error Number :-2147467259 Error Description :Invalid connection string attribute Error Source :Microsoft OLE DB Provider for SQL Server ------------------------------------------------------------------------------------ System Error Number: 0 System Error Description: System Error Source: ------------------------------------------------------------------------------------ Context/Detail Error Description : :: updateOpsRecord :: ADO Error :: Error #-2147467259 Cannot generate SSPI context (Source: Microsoft OLE DB Provider for SQL Server) (SQL State: HY000) (NativeError: 0) No Help file available
This is intresting to see. I tried looking up in all the forums and help file but no ansewers. Help would be appreciated.
Every time I start SSMS 2012 the "Connect to Server" box is partially obscured in that the top of it, the move bar can't be accessed. I've manually moved it using "alt+space" then "M" followed by the arrow keys, but it's getting annoying. Â Is there any way to change the initial start position of this box?Â
Just installed SQL Server 2005 Standard. When I attempt to connect using SSMS it just sits. No error comes up. The log seems to indicate everythings OK. SQLServer and SQLBrowser services are started. Here's the log:
2007-07-07 09:41:23.07 Server Microsoft SQL Server 2005 - 9.00.3042.00 (Intel X86) Feb 9 2007 22:47:07 Copyright (c) 1988-2005 Microsoft Corporation Standard Edition on Windows NT 5.1 (Build 2600: Service Pack 2)
2007-07-07 09:41:23.07 Server (c) 2005 Microsoft Corporation. 2007-07-07 09:41:23.07 Server All rights reserved. 2007-07-07 09:41:23.07 Server Server process ID is 2412. 2007-07-07 09:41:23.07 Server Authentication mode is WINDOWS-ONLY. 2007-07-07 09:41:23.07 Server Logging SQL Server messages in file 'C:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLLOGERRORLOG'. 2007-07-07 09:41:23.07 Server This instance of SQL Server last reported using a process ID of 1348 at 7/7/2007 9:35:40 AM (local) 7/7/2007 2:35:40 PM (UTC). This is an informational message only; no user action is required. 2007-07-07 09:41:23.07 Server Registry startup parameters: 2007-07-07 09:41:23.07 Server -d C:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLDATAmaster.mdf 2007-07-07 09:41:23.07 Server -e C:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLLOGERRORLOG 2007-07-07 09:41:23.07 Server -l C:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLDATAmastlog.ldf 2007-07-07 09:41:23.11 Server SQL Server is starting at normal priority base (=7). This is an informational message only. No user action is required. 2007-07-07 09:41:23.11 Server Detected 1 CPUs. This is an informational message; no user action is required. 2007-07-07 09:41:23.34 Server Using dynamic lock allocation. Initial allocation of 2500 Lock blocks and 5000 Lock Owner blocks per node. This is an informational message only. No user action is required. 2007-07-07 09:41:23.36 Server Attempting to initialize Microsoft Distributed Transaction Coordinator (MS DTC). This is an informational message only. No user action is required. 2007-07-07 09:41:23.89 Server The Microsoft Distributed Transaction Coordinator (MS DTC) service could not be contacted. If you would like distributed transaction functionality, please start this service. 2007-07-07 09:41:23.89 Server Database mirroring has been enabled on this instance of SQL Server. 2007-07-07 09:41:23.90 spid5s Starting up database 'master'. 2007-07-07 09:41:24.20 spid5s SQL Trace ID 1 was started by login "sa". 2007-07-07 09:41:24.28 spid5s Starting up database 'mssqlsystemresource'. 2007-07-07 09:41:24.31 spid5s The resource database build version is 9.00.3042. This is an informational message only. No user action is required. 2007-07-07 09:41:25.65 Server A self-generated certificate was successfully loaded for encryption. 2007-07-07 09:41:25.67 Server Server local connection provider is ready to accept connection on [ \.pipeSQLLocalMSSQLSERVER ]. 2007-07-07 09:41:25.67 Server Server local connection provider is ready to accept connection on [ \.pipesqlquery ]. 2007-07-07 09:41:25.67 spid9s Starting up database 'model'. 2007-07-07 09:41:25.67 Server Server is listening on [ 127.0.0.1 <ipv4> 1434]. 2007-07-07 09:41:25.67 Server Dedicated admin connection support was established for listening locally on port 1434. 2007-07-07 09:41:25.68 Server SQL Server is now ready for client connections. This is an informational message; no user action is required. 2007-07-07 09:41:25.68 spid5s Server name is 'LAPTOP'. This is an informational message only. No user action is required. 2007-07-07 09:41:25.71 spid12s Starting up database 'msdb'. 2007-07-07 09:41:25.71 spid13s Starting up database 'ReportServer'. 2007-07-07 09:41:25.71 spid14s Starting up database 'ReportServerTempDB'. 2007-07-07 09:41:25.71 spid15s Starting up database 'testx'. 2007-07-07 09:41:27.45 spid9s Clearing tempdb database. 2007-07-07 09:41:28.65 spid9s Starting up database 'tempdb'. 2007-07-07 09:41:28.78 spid5s Recovery is complete. This is an informational message only. No user action is required. 2007-07-07 09:41:28.78 spid12s The Service Broker protocol transport is disabled or not configured. 2007-07-07 09:41:28.78 spid12s The Database Mirroring protocol transport is disabled or not configured. 2007-07-07 09:41:29.25 spid12s Service Broker manager has started. 2007-07-07 09:57:23.54 Server CPU time stamp frequency has changed from 117988 to 200203 ticks per millisecond. The new frequency will be used. 2007-07-07 10:09:23.85 Server CPU time stamp frequency has changed from 200203 to 242307 ticks per millisecond. The new frequency will be used. 2007-07-07 10:20:03.20 spid12s Service Broker manager has shut down. 2007-07-07 10:20:04.25 spid5s SQL Server is terminating in response to a 'stop' request from Service Control Manager. This is an informational message only. No user action is required. 2007-07-07 10:20:04.25 spid5s SQL Trace was stopped due to server shutdown. Trace ID = '1'. This is an informational message only; no user action is required.
I've two instances(Default, Named[dynamicsFINANCE]) running on SQL server 2014. However, when I try to connect to named instance say (dynamicsFINANCE) using SQL authentication from local SSMS, I get below error message:
A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified) (Microsoft SQL Server, Error: -1)
I assigned a static port number to the named instance [dynamicsFINANCE] 1450. I also setup the firewall rule to allow access to Port 1450.
Is there a roadmap for allowing SSMS to connect to a PDW (MS SQL2012 Parallel Data Warehouse) with full functionality? Current support leaves much to be desired without installing third party tools.
I've installed SQL Server 2005 SP1 RTM on a Windows 2003 R2 machine (machine A), and my local workstation (machine B).
From machine B, I can use SSMS to connect to SQL Server on machine A. This is using either "New Query" or "Object Explorer".
However, on machine A, SSMS can only connect to machines A or B using the "New Query" option. If I try "Object Explorer" for either, I get the error message "Failed to retrieve data for this request... urn could not be resolved at level Configuration."
I'm not sure what died (no pun intended) since the last time this worked. Any thoughts on this?
