When I test my machine, the login works perfectly, when I share it over the network it returns me the following error:
A network-related 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: SQL Network Interfaces, error: 50 - Local Database Runtime error occurred. Can not create an automatic instance. See the Windows Application event log for error details.
I am using the IIS 8.5 version, my application is of type WebForm Asp.Net, The login I use is the one that comes from the application.