远程数据库（固定IP地址）连接，为什么频繁出现“连接失败”的情况？该如何处理
远程数据库（固定IP地址）连接，为什么频繁出现“连接失败”的情况？
我在DataModule中放了个ADOConnection1，连接设置如下：
Provider=SQLOLEDB.1;Password=123;Persist Security Info=True;User ID=cwuser;Initial Catalog=jxcw;Data Source=220.112.63.159；其中220.112.63.159为远程固定IP地址。
我在其他Form中放置了ADOQuery，并在属性中设置了ADOQuery->Connection = DataModule1->ADOConnection1。这样的话，ADOConnection1和ADOQuery应该一直处于连接状态把？
但实际情形是：用户说如果鼠标放那儿不动，过段时间就出现“连接失败”的提示，请问怎么解决啊？
------解决方案--------------------
CommandTimeout//指定执行一个数据操作命令的时间，在此时间段内操作失败即退出...
Specifies amount of time to attempt execution of a command.
__property int CommandTimeout = {read=GetCommandTimeout, write=SetCommandTimeout, default
=30};
Description
Use CommandTimeout to specify the amount of time, in seconds, that that can expire before an attempt to execute a command is considered unsuccessful. The default value is 30 seconds.
If a command successfully executed prior to the expiration of the seconds specified in CommandTimeout, this property has no effect. If execution of a command has not been successfully completed before the time has elapsed, the command is canceled.
ConnectionTimeout//确定尝试连接的时间，此时间内连接不成功即退出
Specifies amount of time to attempt a connection.
__property int ConnectionTimeout = {read=GetConnectionTimeout, write=SetConnectionTimeout,
default=15}
Description
Use ConnectionTimeout to specify the amount of time, in seconds, that can expire before an attempt to make a connection is considered unsuccessful. The default value is 15 seconds.
If a connection is successfully made prior to the expiration of the seconds specified or the Cancel method is called, ConnectionTimeout has no effect. If the specified time expires and a connection has not been successfully made, the attempt is terminated and an exception is thrown.
我在DataModule中放了个ADOConnection1，连接设置如下：
Provider=SQLOLEDB.1;Password=123;Persist Security Info=True;User ID=cwuser;Initial Catalog=jxcw;Data Source=220.112.63.159；其中220.112.63.159为远程固定IP地址。
我在其他Form中放置了ADOQuery，并在属性中设置了ADOQuery->Connection = DataModule1->ADOConnection1。这样的话，ADOConnection1和ADOQuery应该一直处于连接状态把？
但实际情形是：用户说如果鼠标放那儿不动，过段时间就出现“连接失败”的提示，请问怎么解决啊？
------解决方案--------------------
CommandTimeout//指定执行一个数据操作命令的时间，在此时间段内操作失败即退出...
Specifies amount of time to attempt execution of a command.
__property int CommandTimeout = {read=GetCommandTimeout, write=SetCommandTimeout, default
=30};
Description
Use CommandTimeout to specify the amount of time, in seconds, that that can expire before an attempt to execute a command is considered unsuccessful. The default value is 30 seconds.
If a command successfully executed prior to the expiration of the seconds specified in CommandTimeout, this property has no effect. If execution of a command has not been successfully completed before the time has elapsed, the command is canceled.
ConnectionTimeout//确定尝试连接的时间，此时间内连接不成功即退出
Specifies amount of time to attempt a connection.
__property int ConnectionTimeout = {read=GetConnectionTimeout, write=SetConnectionTimeout,
default=15}
Description
Use ConnectionTimeout to specify the amount of time, in seconds, that can expire before an attempt to make a connection is considered unsuccessful. The default value is 15 seconds.
If a connection is successfully made prior to the expiration of the seconds specified or the Cancel method is called, ConnectionTimeout has no effect. If the specified time expires and a connection has not been successfully made, the attempt is terminated and an exception is thrown.