Error 26 Error Locating Server/instance Specified
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★★★★★★★★★★★★★★★ SQL Server ConnectivityMay 13, 2007286 0 0 0 Users often see this error message when connection to a SQL Server and don't know where to start to solve the problem. In
Sql Server Error Locating Server/instance Specified
most forums, people says this is because remote connection is not enabled on the sql network interfaces error 26 - error locating server/instance specified server. This is not exactly correct. Actually, this error message give customers very specific information and the solution is quite simple. provider sql network interfaces error 26 - error locating server/instance specified First of all, you get this error message only if you are trying to connect to a SQL Server named instance. For default instance, you never see this. Why? Because even if we failed at
Error 28 Server Doesn Support Requested Protocol
this stage (i.e. error locating server/instance specified), we will continue to try connect using default values, e.g defaul TCP port 1433, default pipe name for Named Pipes. You may see other error message due to failure later, but not this error message. Every time client makes a connection to SQL Server named instance, we will send a SSRP UDP packet to the server machine UDP port 1434. We need this step
Error 40 Could Not Open A Connection To Sql Server
to know configuration information of the SQL instance, e.g., protocols enabled, TCP port, pipe name etc. Without these information, client does know how to connect the server and it fails with this specified error message. In a word, the reason that we get this error message is the client stack could not receive SSRP response UDP packet from SQL Browser. It's easy to isolate the issue. Here are the steps:1) Make sure your server name is correct, e.g., no typo on the name. 2) Make sure your instance name is correct and there is actually such an instance on your target machine. [Update: Some application converts \ to . If you are not sure about your application, please try both ServerInstance and Server\Instance in your connection string]3) Make sure the server machineis reachable, e.g, DNS can be resolve correctly, you are able to ping the server (not always true). 4) Make sure SQL Browser service is running on the server.5) If firewall is enabled on the server, you need to put sqlbrowser.exe and/or UDP port 1434 into exception. Once you are done the steps, you should not see this error message anymore. You may still fail to connect your SQL server, but error message should be different and
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Error 26 Error Locating Server Instance Specified 2008
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10 Average: 2.6/5] Sometimes you may see "SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified" error message when connecting to a SQL https://sqlbak.com/blog/sql-network-interfaces-error-26-error-locating-serverinstance-specified/ Server and don't know where to start. In most forums people say this is because remote connection is not enabled on the server. This is not exactly correct. Actually, this error message gives customers a very specific information and the solution is quite simple. First of all, you get this error message only if you are trying to connect to error locating a SQL Server named instance. For a default instance you never see this. Why? Because even if we have failed at this stage (i.e. error locating server/instance specified), we will continue to try connect using default values, e.g default TCP port 1433, default pipe name for Named Pipes. You may see others error messages due to failure later, but not this error locating server error message. Every time client makes a connection to SQL Server named instance, we will send a SSRP UDP packet to the server machine UDP port 1434. We need this step to know configuration information of the SQL instance, e.g., protocols enabled, TCP port, pipe name etc. Without this information, a client does know how to connect to the server and it fails with this specific error message. In other wors, the reason that we get this error message is the client stack could not receive SSRP response UDP packet from SQL Browser. It's easy to resolve the issue. Here are the steps: Make sure your server name is correct, e.g., no typo on the name. Make sure your instance name is correct and there is actually such an instance on your target machine. (Try to use a connection string like .