The login is from an untrusted domain and cannot be used with Windows authentication.

Using sql2008 remote connection to the database encountered this problem, I use the ADO Entity Data Model, with the App. Config and Web. config has been resolved for a long time, because it began to think of SQL permissions problem. It was later resolved that only the Web. config

< connectionStrings >    <  name= "ConnectionString"  ConnectionString= "Data source=192.168.100.30;i Nitial catalog=rsxcompany;integrated Security=false; User Id=sa; password=etm0802; Multipleactiveresultsets=true "  providerName=" System.Data.SqlClient "/> </ connectionStrings >

Set the red font to False

The login is from an untrusted domain and cannot be used with Windows authentication.