hydra为什么出现问题

Question

[ERROR] Too many connect errors to target, disabling ftp://
0 of 1 target completed, 0 valid passwords found
[ERROR] 1 target did not resolve or could not be connected
发现修改-t参数大点的时候，就会多一些破解。但是我改到最大182，也是才破解几百条就没了。
求解，谢谢了。