SqlException：ConnectionTimeout Expired. The timeout period elapsed during the post-login phase

linux系统部署.netcore程序后,访问某台sqlserver 2008 r2数据库

connection timeout expired. the timeout period elapsed during the post-login phase. the connection could have timed out while waiting for server to complete the login process and respond; or it could have timed out while attempting to create multiple active connections. the duration spent while attempting to connect to this server was - [pre-login] initialization=90; handshake=301; [login] initialization=0; authentication=0; [post-login] complete=14001;

sqlclient现在不支持linux的sp1连接。sqlserver 2008 r2需要升级安装sp3 service pack