用户客户端计算机的 SQL Server 登录失败

Question

I am using SQL Server r2 database as a remote server having mixed mode sql authentication.

When run my c# program from client computer to access database with following connection string:

"Data Source=192.168.1.101\SQLEXPRESS,1433;Initial Catalog=Login; Integrated Security=true;Connection timeout=30; User ID=sa;Password=23456"

and facing an error:

Login failed for user 'VAIO\Guest'.

VAIO is remote PC.

Answer 1

you are using Integrated Security=true which denotes that sql will try to login using Windows authentication. It seems that this windows user is not a valid login for sql server. If you want to use user and password set:

Integrated Security=false

Answer 2

it worked for me. use Sa user id and password...

"Data Source=192.168.8.106\PEBB, 1433;Initial Catalog=d2;Integrated Security=False;user id=sa;password=123;Connect Timeout=30"```

Answer 3

Add one space before port no.Data Source=192.168.1.101\SQLEXPRESS, 1433