<connectionStrings>

    <add name="TestEntities"
         connectionString=
         "metadata=res://*/Models.Model1.csdl|res://*/Models.Model1.ssdl|res://*/Models.Model1.msl;
         provider=System.Data.SqlClient;
         provider connection string=&quot;
         Data Source=mssql6.webio.pl,2401;
         Initial Catalog=[nazwa_db];
         Persist Security Info=True;
         User ID=[nazwa_uzytkownika_db];
         Password=[haslo_uzytkownika];
         MultipleActiveResultSets=True&quot;"
         providerName="System.Data.EntityClient" />

  </connectionStrings>