question for jenkins node

[Hanlin.Chen]

Hi:

 I have a question about Jenkins nodes manage like below:

  My slave computer disconnect(like reboot,shutdown),but when it power on,the jenkins node can not connect automatic .when I click “restart agent” button,just a waiting cycle here without log infomation.

Only I can change or re-creacte node information,then click the button,it show log and can be connected and use.  

So what the problem and how to fix it?

Thanks

 

Talins