https://community.qlik.com/t5/Connectivity-Data-Prep/Unable-to-connect-to-SQL-Server-using-quot-Microsoft-SQL-Server/m-p/1812658#M9090 <P>Hi Padma,</P><P>It started working again with no changes done by us.</P><P>&nbsp;</P><P>Thanks ,</P><P>Renu</P> Thu, 03 Jun 2021 08:39:46 GMT tvisha 2021-06-03T08:39:46Z https://community.qlik.com/t5/Connectivity-Data-Prep/Unable-to-connect-to-SQL-Server-using-quot-Microsoft-SQL-Server/m-p/1810773#M9052 <P>Hi <a href="https://community.qlik.com/t5/user/viewprofilepage/user-id/130089">@PadmaPriya</a>&nbsp;, I am unable to reply on this thread, not sure why. it just gives insufficient parameter error.</P><P><A href="https://community.qlik.com/t5/Connectivity-Data-Prep/Unable-to-connect-to-SQL-Server-using-quot-Microsoft-SQL-Server/m-p/1810381#M9047" target="_blank">https://community.qlik.com/t5/Connectivity-Data-Prep/Unable-to-connect-to-SQL-Server-using-quot-Microsoft-SQL-Server/m-p/1810381#M9047</A></P><P>&nbsp;</P><P>Replying to your question - I am using TLS Version 1.1, Using IP4 with Standard SQL port, and we do use the nt service account</P> Wed, 26 May 2021 14:15:54 GMT https://community.qlik.com/t5/Connectivity-Data-Prep/Unable-to-connect-to-SQL-Server-using-quot-Microsoft-SQL-Server/m-p/1810773#M9052 tvisha 2021-05-26T14:15:54Z https://community.qlik.com/t5/Connectivity-Data-Prep/Unable-to-connect-to-SQL-Server-using-quot-Microsoft-SQL-Server/m-p/1810901#M9054 <P>Hello&nbsp;<a href="https://community.qlik.com/t5/user/viewprofilepage/user-id/84410">@tvisha</a>&nbsp;</P><P>&nbsp;</P><P>Please follow the below articles:</P><P><A title="Qlik Sense SQL Connector is failing with error &quot;Unable to find the instance name or server name&quot;." href="https://community.qlik.com/t5/Knowledge-Base/Qlik-Sense-SQL-Connector-is-failing-with-error-quot-Unable-to/ta-p/1799328" target="_self">Qlik Sense SQL Connector is failing with error "Unable to find the instance name or server name"</A></P><P><A title="&quot;The login is from an untrusted domain and cannot be used with Windows authentication&quot; when connecting to Microsoft SQL server " href="https://community.qlik.com/t5/Knowledge-Base/quot-The-login-is-from-an-untrusted-domain-and-cannot-be-used/ta-p/1799320" target="_self">"The login is from an untrusted domain and cannot be used with Windows authentication" when connecting to Microsoft SQL server </A></P><P>&nbsp;</P><P>If still fails please run test.udl and check the connectivity:</P><P><A title="Test SQL database connectivity with test.udl file" href="https://community.qlik.com/t5/Knowledge-Base/Test-SQL-database-connectivity-with-test-udl-file/ta-p/1798653" target="_self"><SPAN>Test SQL database connectivity with test.udl file</SPAN></A></P><P>&nbsp;</P><P>Thanks,</P><P>Padma Priya</P> Thu, 27 May 2021 04:11:11 GMT https://community.qlik.com/t5/Connectivity-Data-Prep/Unable-to-connect-to-SQL-Server-using-quot-Microsoft-SQL-Server/m-p/1810901#M9054 PadmaPriya 2021-05-27T04:11:11Z https://community.qlik.com/t5/Connectivity-Data-Prep/Unable-to-connect-to-SQL-Server-using-quot-Microsoft-SQL-Server/m-p/1811564#M9065 <P>Hello&nbsp;<a href="https://community.qlik.com/t5/user/viewprofilepage/user-id/84410">@tvisha</a>&nbsp;</P><P>&nbsp;</P><P>Did you check on them? Is it working for you?</P><P>&nbsp;</P><P>Thanks,</P><P>Padma Priya</P> Sat, 29 May 2021 15:01:14 GMT https://community.qlik.com/t5/Connectivity-Data-Prep/Unable-to-connect-to-SQL-Server-using-quot-Microsoft-SQL-Server/m-p/1811564#M9065 PadmaPriya 2021-05-29T15:01:14Z https://community.qlik.com/t5/Connectivity-Data-Prep/Unable-to-connect-to-SQL-Server-using-quot-Microsoft-SQL-Server/m-p/1812658#M9090 <P>Hi Padma,</P><P>It started working again with no changes done by us.</P><P>&nbsp;</P><P>Thanks ,</P><P>Renu</P> Thu, 03 Jun 2021 08:39:46 GMT https://community.qlik.com/t5/Connectivity-Data-Prep/Unable-to-connect-to-SQL-Server-using-quot-Microsoft-SQL-Server/m-p/1812658#M9090 tvisha 2021-06-03T08:39:46Z