# Can't connet to SQLServer

**URL:** https://community.ofelia.com/t/cant-connet-to-sqlserver/10795
**Category:** Q&A
**Created:** [13 May 2021 11:17 UTC](https://community.ofelia.com/t/cant-connet-to-sqlserver/10795 "2021-05-13T11:17:22Z")
**Posts on this page:** 2
**Page:** 1

<div class="post-metadata">

### Author: ![carlos.gonzalezmendo](https://avatars.discourse-cdn.com/v4/letter/c/9de0a6/32.png) [@carlos.gonzalezmendo](https://community.ofelia.com/u/carlos.gonzalezmendo)
#### Post date: [13 May 2021 11:17 UTC](https://community.ofelia.com/t/cant-connet-to-sqlserver/10795/1 "2021-05-13T11:17:22Z")

</div>

I am trying to change the&nbsp;RDBMS&nbsp;from the H2 to work with SQLServer, I am able to use a connector and use&nbsp;the SQLServer instance&nbsp;so the problem does not seem to be with the SQLServer configuration.

I am encountering a problem the moment I execute&nbsp;"start-bonita.bat"&nbsp;I think the problem comes from the host name, because it contains a backslash "/" and in the error message it is not shown.

my host name (I added a double backlash where the backlash is):

> [bdm.db.server.name](http://bdm.db.server.name/)=PLX300000000541\\SQLEXPRESS

the error line (ignores the double backlash):

> Caused by: java.lang.RuntimeException: java.sql.SQLException: Cannot create PoolableConnectionFactory (No se pudo realizar la conexi├│n TCP/IP al host PLX300000000541SQLEXPRESS, puerto 49652. Error: "PLX300000000541SQLEXPRESS. Verifique las propiedades de conexi├│n, compruebe que hay una instancia de SQL Server ejecut├índose en el host y aceptando las conexiones TCP/IP en el puerto y compruebe que no hay ning├║n firewall bloqueando las conexiones TCP en el puerto.".)

I am working on Bonita 2021 with SQLServer2019;&nbsp;but I&nbsp;have tried to do this on different computers and versions of Bonita and SQLServer and the same error occurs.  
  
  
The following error is shown repeatedly:

> Related cause:  
> org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'bonitaDataSource' defined in class path resource [bonita-platform-community.xml]: Invocation of init method failed; nested exception is javax.naming.NamingException: Excepci├│n inesperada resolviendo referencia [Root exception is java.lang.RuntimeException: java.sql.SQLException: Cannot create PoolableConnectionFactory (No se pudo realizar la conexi├│n TCP/IP al host PLX300000000541SQLEXPRESS, puerto 49652. Error: "PLX300000000541SQLEXPRESS. Verifique las propiedades de conexi├│n, compruebe que hay una instancia de SQL Server ejecut├índose en el host y aceptando las conexiones TCP/IP en el puerto y compruebe que no hay ning├║n firewall bloqueando las conexiones TCP en el puerto.".)]  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1794)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:324)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.springframework.beans.factory.support.AbstractBeanFactory.getTypeForFactoryBean(AbstractBeanFactory.java:1653)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.getTypeForFactoryBean(AbstractAutowireCapableBeanFactory.java:894)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.springframework.beans.factory.support.AbstractBeanFactory.isTypeMatch(AbstractBeanFactory.java:619)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.springframework.beans.factory.support.DefaultListableBeanFactory.doGetBeanNamesForType(DefaultListableBeanFactory.java:536)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanNamesForType(DefaultListableBeanFactory.java:503)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.springframework.beans.factory.BeanFactoryUtils.beanNamesForTypeIncludingAncestors(BeanFactoryUtils.java:265)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1473)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1270)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1227)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireByType(AbstractAutowireCapableBeanFactory.java:1509)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1404)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:593)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:324)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:897)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:879)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:551)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.bonitasoft.engine.service.impl.SpringBeanAccessor.initializeContext(SpringBeanAccessor.java:67)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.bonitasoft.engine.service.impl.SpringBeanAccessor.getContext(SpringBeanAccessor.java:55)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.bonitasoft.engine.service.impl.SpringBeanAccessor.getService(SpringBeanAccessor.java:42)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.bonitasoft.engine.service.impl.SpringPlatformServiceAccessor.getPlatformSessionService(SpringPlatformServiceAccessor.java:97)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.bonitasoft.engine.EngineInitializer.getPlatformSessionService(EngineInitializer.java:96)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.bonitasoft.engine.EngineInitializer.unloadEngine(EngineInitializer.java:131)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.bonitasoft.engine.api.internal.servlet.EngineInitializerListener.contextDestroyed(EngineInitializerListener.java:41)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.apache.catalina.core.StandardContext.listenerStop(StandardContext.java:4735)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5399)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:187)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:743)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:719)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:705)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:614)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1822)  
> &nbsp; &nbsp; &nbsp; &nbsp; at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)  
> &nbsp; &nbsp; &nbsp; &nbsp; at java.util.concurrent.FutureTask.run(FutureTask.java:266)  
> &nbsp; &nbsp; &nbsp; &nbsp; at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)  
> &nbsp; &nbsp; &nbsp; &nbsp; at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)  
> &nbsp; &nbsp; &nbsp; &nbsp; at java.lang.Thread.run(Thread.java:748)  
> Caused by: javax.naming.NamingException: Excepci├│n inesperada resolviendo referencia [Root exception is java.lang.RuntimeException: java.sql.SQLException: Cannot create PoolableConnectionFactory (No se pudo realizar la conexi├│n TCP/IP al host PLX300000000541SQLEXPRESS, puerto 49652. Error: "PLX300000000541SQLEXPRESS. Verifique las propiedades de conexi├│n, compruebe que hay una instancia de SQL Server ejecut├índose en el host y aceptando las conexiones TCP/IP en el puerto y compruebe que no hay ning├║n firewall bloqueando las conexiones TCP en el puerto.".)]  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.apache.naming.NamingContext.lookup(NamingContext.java:856)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.apache.naming.NamingContext.lookup(NamingContext.java:159)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.apache.naming.NamingContext.lookup(NamingContext.java:827)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.apache.naming.NamingContext.lookup(NamingContext.java:159)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.apache.naming.NamingContext.lookup(NamingContext.java:827)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.apache.naming.NamingContext.lookup(NamingContext.java:173)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.apache.naming.SelectorContext.lookup(SelectorContext.java:163)  
> &nbsp; &nbsp; &nbsp; &nbsp; at javax.naming.InitialContext.lookup(InitialContext.java:417)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.springframework.jndi.JndiTemplate.lambda$lookup$0(JndiTemplate.java:157)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.springframework.jndi.JndiTemplate.execute(JndiTemplate.java:92)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.springframework.jndi.JndiTemplate.lookup(JndiTemplate.java:157)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.springframework.jndi.JndiTemplate.lookup(JndiTemplate.java:179)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.springframework.jndi.JndiLocatorSupport.lookup(JndiLocatorSupport.java:96)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.springframework.jndi.JndiObjectLocator.lookup(JndiObjectLocator.java:114)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.springframework.jndi.JndiObjectFactoryBean.lookupWithFallback(JndiObjectFactoryBean.java:239)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.springframework.jndi.JndiObjectFactoryBean.afterPropertiesSet(JndiObjectFactoryBean.java:225)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1853)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1790)  
> &nbsp; &nbsp; &nbsp; &nbsp; ... 46 more  
> Caused by: java.lang.RuntimeException: java.sql.SQLException: Cannot create PoolableConnectionFactory (No se pudo realizar la conexi├│n TCP/IP al host PLX300000000541SQLEXPRESS, puerto 49652. Error: "PLX300000000541SQLEXPRESS. Verifique las propiedades de conexi├│n, compruebe que hay una instancia de SQL Server ejecut├índose en el host y aceptando las conexiones TCP/IP en el puerto y compruebe que no hay ning├║n firewall bloqueando las conexiones TCP en el puerto.".)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.jboss.narayana.tomcat.jta.internal.PoolingDataSourceFactory.createPoolingDataSource(PoolingDataSourceFactory.java:153)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.jboss.narayana.tomcat.jta.TransactionalDataSourceFactory.getObjectInstance(TransactionalDataSourceFactory.java:72)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.apache.naming.factory.FactoryBase.getObjectInstance(FactoryBase.java:96)  
> &nbsp; &nbsp; &nbsp; &nbsp; at javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:321)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.apache.naming.NamingContext.lookup(NamingContext.java:839)  
> &nbsp; &nbsp; &nbsp; &nbsp; ... 63 more  
> Caused by: java.sql.SQLException: Cannot create PoolableConnectionFactory (No se pudo realizar la conexi├│n TCP/IP al host PLX300000000541SQLEXPRESS, puerto 49652. Error: "PLX300000000541SQLEXPRESS. Verifique las propiedades de conexi├│n, compruebe que hay una instancia de SQL Server ejecut├índose en el host y aceptando las conexiones TCP/IP en el puerto y compruebe que no hay ning├║n firewall bloqueando las conexiones TCP en el puerto.".)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.apache.tomcat.dbcp.dbcp2.managed.BasicManagedDataSource.createPoolableConnectionFactory(BasicManagedDataSource.java:252)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.apache.tomcat.dbcp.dbcp2.BasicDataSource.createDataSource(BasicDataSource.java:533)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.apache.tomcat.dbcp.dbcp2.BasicDataSource.getLogWriter(BasicDataSource.java:1047)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.jboss.narayana.tomcat.jta.internal.PoolingDataSourceFactory.createPoolingDataSource(PoolingDataSourceFactory.java:149)  
> &nbsp; &nbsp; &nbsp; &nbsp; ... 67 more  
> Caused by: com.microsoft.sqlserver.jdbc.SQLServerException: No se pudo realizar la conexi├│n TCP/IP al host PLX300000000541SQLEXPRESS, puerto 49652. Error: "PLX300000000541SQLEXPRESS. Verifique las propiedades de conexi├│n, compruebe que hay una instancia de SQL Server ejecut├índose en el host y aceptando las conexiones TCP/IP en el puerto y compruebe que no hay ning├║n firewall bloqueando las conexiones TCP en el puerto.".  
> &nbsp; &nbsp; &nbsp; &nbsp; at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(SQLServerException.java:191)  
> &nbsp; &nbsp; &nbsp; &nbsp; at com.microsoft.sqlserver.jdbc.SQLServerException.ConvertConnectExceptionToSQLServerException(SQLServerException.java:242)  
> &nbsp; &nbsp; &nbsp; &nbsp; at com.microsoft.sqlserver.jdbc.SocketFinder.findSocket(IOBuffer.java:2369)  
> &nbsp; &nbsp; &nbsp; &nbsp; at com.microsoft.sqlserver.jdbc.TDSChannel.open(IOBuffer.java:551)  
> &nbsp; &nbsp; &nbsp; &nbsp; at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectHelper(SQLServerConnection.java:1963)  
> &nbsp; &nbsp; &nbsp; &nbsp; at com.microsoft.sqlserver.jdbc.SQLServerConnection.login(SQLServerConnection.java:1628)  
> &nbsp; &nbsp; &nbsp; &nbsp; at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectInternal(SQLServerConnection.java:1459)  
> &nbsp; &nbsp; &nbsp; &nbsp; at com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(SQLServerConnection.java:773)  
> &nbsp; &nbsp; &nbsp; &nbsp; at com.microsoft.sqlserver.jdbc.SQLServerDataSource.getConnectionInternal(SQLServerDataSource.java:704)  
> &nbsp; &nbsp; &nbsp; &nbsp; at com.microsoft.sqlserver.jdbc.SQLServerPooledConnection.createNewConnection(SQLServerPooledConnection.java:59)  
> &nbsp; &nbsp; &nbsp; &nbsp; at com.microsoft.sqlserver.jdbc.SQLServerPooledConnection.\<init\>(SQLServerPooledConnection.java:41)  
> &nbsp; &nbsp; &nbsp; &nbsp; at com.microsoft.sqlserver.jdbc.SQLServerXAConnection.\<init\>(SQLServerXAConnection.java:30)  
> &nbsp; &nbsp; &nbsp; &nbsp; at com.microsoft.sqlserver.jdbc.SQLServerXADataSource.getXAConnection(SQLServerXADataSource.java:50)  
> &nbsp; &nbsp; &nbsp; &nbsp; at com.microsoft.sqlserver.jdbc.SQLServerXADataSource.getXAConnection(SQLServerXADataSource.java:83)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.apache.tomcat.dbcp.dbcp2.managed.DataSourceXAConnectionFactory.createConnection(DataSourceXAConnectionFactory.java:145)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.apache.tomcat.dbcp.dbcp2.managed.PoolableManagedConnectionFactory.makeObject(PoolableManagedConnectionFactory.java:75)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.apache.tomcat.dbcp.dbcp2.BasicDataSource.validateConnectionFactory(BasicDataSource.java:102)  
> &nbsp; &nbsp; &nbsp; &nbsp; at org.apache.tomcat.dbcp.dbcp2.managed.BasicManagedDataSource.createPoolableConnectionFactory(BasicManagedDataSource.java:248)  
> &nbsp; &nbsp; &nbsp; &nbsp; ... 70 more
> 
> 2021-05-13 08:29:22.438 +0200 INFORMACI├ôN: org.apache.catalina.startup.HostConfig Deployment of deployment descriptor [C:\BonitaCommunity\server\conf\Catalina\localhost\bonita.xml] has finished in [258.906] ms  
> 2021-05-13 08:29:22.438 +0200 INFORMACI├ôN: org.apache.catalina.startup.HostConfig Desplegando el directorio [C:\BonitaCommunity\server\webapps\ROOT] de la aplicaci├│n web  
> 2021-05-13 08:29:22.499 +0200 INFORMACI├ôN: org.apache.catalina.startup.HostConfig Deployment of web application directory [C:\BonitaCommunity\server\webapps\ROOT] has finished in [61] ms  
> 2021-05-13 08:29:22.509 +0200 INFORMACI├ôN: org.apache.coyote.http11.Http11NioProtocol Starting ProtocolHandler ["http-nio-8080"]  
> 2021-05-13 08:29:22.532 +0200 INFORMACI├ôN: org.apache.catalina.startup.Catalina Server startup in 259279 ms

> My database.properties file looks like this:  
>   
> ####################################################################################  
> #  
> # Modify the following values to suit your database needs.  
> # Fore more information, see file ../HOW\_TO\_CONFIGURE\_AND\_RUN.txt  
> #  
> ####################################################################################  
>   
>   
> #########################################  
> # Bonita database properties  
> #########################################  
>   
> # valid values are (h2, postgres, sqlserver, oracle, mysql)  
> db.vendor=sqlserver  
> # when using h2, no server or port setting is needed since connexion is made using file protocol mode using relative directory:  
> [db.server.name](http://db.server.name/)=PLX300000000541\\SQLEXPRESS  
> db.server.port=49652  
> # if your database name contains a backslash (\) character, you must double it (\\):  
> [db.database.name](http://db.database.name/)=  
> db.user=bonitadev  
> # if your database password contains a backslash (\) character, you must double it (\\):  
> db.password=secret\_password123  
>   
> ###################################  
> # Business Data database properties  
> ###################################  
> # valid values are (h2, postgres, sqlserver, oracle, mysql)  
> bdm.db.vendor=sqlserver  
> [bdm.db.server.name](http://bdm.db.server.name/)=PLX300000000541\\SQLEXPRESS  
> bdm.db.server.port=49652  
> [bdm.db.database.name](http://bdm.db.database.name/)=BONITA  
> bdm.db.user=bonitadev  
> bdm.db.password=secret\_password123  
>   
>   
> # IMPORTANT NOTE regarding H2 database:  
> # in case you move whole setup folder to another directory, you must change property below  
> # to point to original folder containing h2 database folder  
> # new value can be relative or absolute since it still points to the right folder  
> # WARNING for Windows users: keep forward slashes like below (instead of backslashes):  
> #h2.database.dir=../h2\_database

---

<div class="post-metadata">

### Author: ![Laurent\_Leseigneur](https://dub1.discourse-cdn.com/flex013/user_avatar/community.ofelia.com/laurent_leseigneur/32/725_2.png) [@Laurent\_Leseigneur](https://community.ofelia.com/u/Laurent_Leseigneur)
#### Post date: [28 May 2021 20:01 UTC](https://community.ofelia.com/t/cant-connet-to-sqlserver/10795/2 "2021-05-28T20:01:33Z")

</div>

Hi Carlos,

just check you don't try to change this connection in your studio, and ensure you put the required&nbsp;Jdbc driver jar in the proper folder as detailed in documentation&nbsp;https://documentation.bonitasoft.com/bonita/2021.1/list-of-database-connectors#mssql
