C Error 40
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SERVER - Fix : Error : 40 - could not open a connection to SQL server. April 23, 2007Pinal DaveSQL, SQL Server, SQL Tips and Tricks177 commentsAn error has occurred while establishing a connection to the server when connecting
Error 40 Could Not Open A Connection To Sql Server 2012
to SQL server 2005, this failure may be caused by the fact that error 40 could not open a connection to sql server 2008 under default settings SQL server does not allow remote connection. ( provider: Named Pipes Provider, error: 40 - could
Could Not Open A Connection To Sql Server Error 2
not open a connection to SQL server. ) Fix/Workaround/Solution: Step 1) Make sure SQL SERVER is up and the instance you try to connect is running. Step 2) Your system Firewall should error 40 in sql server 2014 not block SQL Server port. Step 3) Go to Computer Management >> Service and Application >> SQL Server 2005 Configuration >> Network Configuration Enable TCP/IP protocol. Make sure that SQL SERVER port is by Default 1433. Step 4) Now follow this KB Article of MSDN depending on your server : http://support.microsoft.com/default.aspx?scid=kb;EN-US;914277UPDATE : If above solution does not help refer the follow up post SQL SERVER sql server error 40 and error 2 - Fix : Error : 1326 Cannot connect to Database Server Error: 40 - Could not open a connection to SQL Server where additional issues with FIREWALL is explained with images.Reference : Pinal Dave (http://blog.SQLAuthority.com) Tags: SQL Error Messages, SQL Server Security71Related Articles SQL SERVER - What Permissions I have on Database I am Connected to? December 22, 2013Pinal Dave SQL SERVER - Create Database Error in Windows Vista May 7, 2008Pinal Dave SQL SERVER - 2008 - IntelliSense Does Not Work - Enable IntelliSense March 31, 2009Pinal Dave 177 comments. Leave new shaik January 28, 2015 12:37 amHi Experts. I have got the error "a network related or instance specific error occurred sql server 2012 ". I have enabled tcp/ip, restarted the services. The sql server service is getting stopped even after the manual restart. I have checked in event viewer and I noticed a error. Here is the error The log scan number (43:456:1) passed to log scan in database ‘model' is not valid. This error may indicate data corruption or that the log file (.ldf) does not match the data file (.mdf). If this error occurred during replica
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Error 40 Could Not Open A Connection To Sql Server 2014
4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Error 40: Could not open a connection to SQL Server up vote 0 down vote favorite I http://blog.sqlauthority.com/2007/04/23/sql-server-fix-error-40-could-not-open-a-connection-to-sql-server/ am running a windows application on my computer but, while I connect to my SQL Server database an error occurs which says Named pipes Error 40 Could not open a connection to SQL server. I tried several MSDN pages and links, which includes firewall setting change, SQL configuration settings, but nothing works. Please help c# sql-server-2005 share|improve this question edited Apr 10 '13 at 6:52 marc_s 451k938631029 asked Apr 10 '13 at http://stackoverflow.com/questions/15918198/error-40-could-not-open-a-connection-to-sql-server 6:06 user2038924 313 1 Missing an lot of context mate. Can you connect via SSMS? Is it an issue with your application alone? Can you connect via the Server explorer in visual studio? –basarat Apr 10 '13 at 6:13 Have you viewed the SQL Server Errorlog? social.msdn.microsoft.com/forums/en-US/sqldataaccess/thread/… –basarat Apr 10 '13 at 6:14 @BasaratAli: Yes my friend. SSMS works fine. But although databases and tables exist in my database the application on run gives the above error. –user2038924 Apr 10 '13 at 6:23 And yes...I also checked the SQL server error log. The problem persists. The issue according to me is that the software/windows application works fine on the machine over which it was developed but gives an error when run on some other machine and the server is not found. –user2038924 Apr 10 '13 at 6:24 Is the server on the same machine as the one used to develop the software / windows application? –basarat Apr 10 '13 at 6:33 | show 1 more comment 4 Answers 4 active oldest votes up vote 1 down vote SOLVED !! Simply, Instead of using "Microsoft SQL Server (SqlClient)" as The DataSource Use ".NET Framework Data Provider for MySQL" Use your Credentials for the MySQL Connection (ServerName,User,Pas
file is larger than the server's current page size. The page size determines the maximum supported index node size. Possible causes:The file was created using a larger PAGE_SIZE setting than the http://docs.faircom.com/doc/knowledgebase/28259.htm server is currently using. This situation can arise if the file was created by a server or a standalone c-tree utility that is configured to use a smaller page size than the server https://www.mssqltips.com/sqlservertip/2340/resolving-could-not-open-a-connection-to-sql-server-errors/ is currently using, or if after the file was created the PAGE_SIZE setting was changed and the server was restarted. Troubleshooting steps:To resolve this error, either: Re-create the file (by rebuilding or compacting sql server the file) using the page size setting currently used by the c-tree Server, orChange the server's PAGE_SIZE setting to ensure it is at least as large as the page size used when creating the file and restart the c-tree Server.Note: A c-tree superfile has stricter page size requirements than a c-tree index has. A superfile can only be opened by a server who's PAGE_SIZE exactly matches could not open the page size used when creating the superfile. See the discussion of c-tree error 417 for details. c-tree Plus ODBC Driver c-tree Plus ODBC Driver users may experience error 40 when an application's index file is using a page size larger than allocated by the ODBC driver. To adjust this, access the Windows ODBC Data Source Administrator. Note: To configure the 32 bit ODBC driver with 64 bit versions of Windows, you must access the ODBC Data Source Administrator from the following directory: %WINDIR%\syswow64\odbcad32.exe In the ODBC Data Source Administrator window, select the FairCom 32bit driver and click Configure. When the configuration window is displayed, click the Options button. The page size used by the driver is calculated by multiplying the Sector Size shown in this window by 128 bytes. Try increasing the Sector Size from 16 up to 32, then 64. Be sure to close your ODBC compliant application and reconnect after each change to the ODBC driver configuration. If this doesn't work, you may need to rebuild the index files. It's possible a corrupted index file (typically caused by a system coming down without the files being closed first) could be cause this error.
Related Tips: More > SQL Server Configurations Problem Sometimes you may have issues connecting to SQL Server and you may get messages such as the following: ERROR: (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) (Microsoft SQL Server, Error:) An error has occurred while establishing a connection to the server. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) (Microsoft SQL Server, Error: 5) Or 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) (Microsoft SQL Server, Error: 1326) Or A network-related error 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: TCP Provider, error: 0 - No such host is known.) (Microsoft SQL Server, Error: 11001) These errors could be for either Named Pipes connections or TCP/IP connections. In this tip, we look at what may be causes to these errors and how to resolve. Solution There could be several reasons you get these error messages. Follow the below steps to see if you can resolve the issue. Step 1Make sure you are able to ping the physical server where SQL Server is installed from the client machine. If not, you can try to connect to the SQL Server using an IP Address (for default instance) or IP Address\Instance Name for a named instance. If it resolves using an IP address, you can add the SQL Server machine into /etc/host file. To add the entry in the /host file type %SystemRoot%\system32\drivers\etc\ in the run window and open the host file using Notepad. In the below image I added IP address 74.200.243.253 with a machine name of SQLDBPool. Now I should be able to use the machine name instead of the IP address to connect to the SQL Server. Step 2 Make sure the SQL services are running You can check the SQL Server services by using the SC command or SQL Server Configuration Manager. Many times you may find that the SQL Server instance is not running. Using SQL Server Configuration Manager Using SC command Please note for a named instance you have to write the command as follows using the correct instance name: sc query mssql$instancename Step 3 Check that the SQL Browser service is running. If you have installed a SQL Server named instance and not configured a specific TCP