Upgrade to veeam v12.3.1.113, but this client update interface cannot be closed. What should I do?

It seems like this task is currently running, so i would suggest, wait some minutes…

Next step, take a look in your task manager, there you would see this current task.

这个任务似乎正在运行，所以我建议等待几分钟......

 

下一步，查看您的任务管理器，在那里您将看到当前任务。

 

I have been waiting for quite some time

i would suggest to finish and then should be echo, what happened

is it linux component? maybe user does not have not enough permission, or port 22 you have been closed 

or you can directly check log in  /var/log on that component

窗户

if windows component

i would suggest to check log on VBR or on target machine itself in C:\ProgramData\Veeam\Setup\Temp\