我建​​议更改连接字符串： http://www.connectionstrings.com/sql-server / [ ^ ]使用IP和用户名局域网外的每个服务器通常都使用自定义授权;）



不是e有足够的信息来发布更详细的答案。

I'd suggest to change connection string: http://www.connectionstrings.com/sql-server/[^] to which uses IP and username and password. Each server outside the LAN usually uses custom authorization ;)

Not enough information to post more detailed answer.