Odbc Connection Error Cannot Generate Sspi Context
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Cannot Generate Sspi Context Fix
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The Target Principal Name Is Incorrect. Cannot Generate Sspi Context (microsoft Sql Server)
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connect to local SQL Server outside domain ★★★★★★★★★★★★★★★ SQL Server ConnectivityOctober 19, 200569 Share 0 0 The “Cannot generate SSPI context” issue is described by http://support.microsoft.com/?id=811889
System.data.sqlclient.sqlexception: Cannot Generate Sspi Context.
in general. In this post I will discuss one daunting case of “Cannot
Sqlexception (0x80131904): The Target Principal Name Is Incorrect. Cannot Generate Sspi Context.
generate SSPI context” error message when failing to connect to SQL server. In most related cases, customers report this the target principal name is incorrect. cannot generate sspi context c# issue as "I can connect to my local SQL Server, but once I connect to my network, I can't connection to my local SQL Server".Such issueis reportedagainst MSDE and SQLExpress. But actually, it https://support.microsoft.com/en-us/kb/811889 can happen with any SKU of SQL Server, including SQL Server 2000 and SQL Server 2005,that support NT integrated authentication. The error message for the failed connection that we discussed here is
[SNAC] “[SQL Native Client]SQL Network Interfaces: The Local Security Authority cannot be contacted.[SQL Native Client]Cannot generate SSPI context”[MDAC] “Cannot generate SSPI context”;[.Net1.0/2.0]” Failed System.Data.SqlClient.SqlException: Cannot generate SSPI context” It can happen when https://blogs.msdn.microsoft.com/sql_protocols/2005/10/19/cannot-generate-sspi-context-error-message-when-connect-to-local-sql-server-outside-domain/ all of followings are true:(1) The hosting machine of SQL Server is connected to a network, including home network or dialup connection, but it is disconnected from its domain.(2) The OS of the hosting machine is Windows XP or 2000. Not windows 2003.(3) The connection is to a local SQL Server.(4) Connection configuration causes network library to choose TCP/IP provider. A scenario that meets all of (1) (2) and (3) looks like an extreme corner case. But the reality is that it is quit often if the hosting machine is a laptop computer. One solution, of course, is to avoid condition (1) by connecting to your corporate domain through VPN or disconnecting from network completely. The reason why they work is subtle and I’ll discuss it later. From user’s perspective, however, in many cases, either connecting over VPN or disconnecting from network might prevent you from accessing some valuable resources, so I want to discuss solutions that do not depend on (1) first. In most cases, users do not explicitly require TCP/IP as the connection provider. For example connection strings in form of “.account to run the SQL service. I’m sure you do too! However, once you do the right thing and change the SQL Service account, https://cmatskas.com/fixing-error-cannot-generate-sspi-context-after-changing-sql-service-account/ you may start getting the following error message when attempting to connect to the sql server: “The target principal name is incorrect. Cannot generate SSPI context.” The explanation, as given by Microsoft in this KB article If you run the SQL Server service under the LocalSystem account, the SPN is automatically registered and Kerberos authentication interacts successfully with the computer that is cannot generate running SQL Server. However, if you run the SQL Server service under a domain account or under a local account, the attempt to create the SPN will fail in most cases because the domain account and the local account do not have the right to set their own SPNs. When the SPN creation is not successful, this means that no SPN is cannot generate sspi set up for the computer that is running SQL Server. If you test by using a domain administrator account as the SQL Server service account, the SPN is successfully created because the domain administrator-level credentials that you must have to create an SPN are present. There are 3 ways to fix the problem: Revert to using the Network Service or Local System account (NOT RECOMMENDED) Assign the domain account to the Domain Admins group (NOT IDEAL – due to the elevated permissions) Fix the problem by giving the domain account just the appropriate permissions in Active Directory. Permissions required are ServicePrincipalName: Read ServicePrincipalName: Write We will use the 3rd option to fix the error. First, it is good practice to verify that the problem is actually due to permission issues. Log in to the server where you SQL Instance is running. Go to the error logs and look for the last time that the SQL service was restarted. You should find an error message similar to this: Date 10/17/2013 9:29:50 AM Log SQL Server (Archive #1 - 10/17/2013 10:53:00 AM) Source Server Message The S