When connecting to a Microsoft SQL database from an untrusted domain, the result is a The login is from an untrusted domain and cannot be used with Windows authentication error.
Resolution
A possible two solutions exist. Choose one of the below:
Option One
If using Windows Authentication.
Open the Windows Services.msc
Right-click on SQL Services
Open Properties
Change Log On As from from Local System Account to an account with Local Administrator permissions which is set up with the correct permissions on both Qlik Sense and the SQL server. This account must have Log on locally security permission.
Option Two
Use SQL authentication.
Rather than using using Windows Authentication connecting to the SQL server, use SQL Authentication.