Subject: bug#47431: Process Whois connection broken by remote peer.

From: Eli Zaretskii <[email-masked]>
Date: Sun, 28 Mar 2021 09:38:24 +0300

> From: Hongyi Zhao <[email-masked]>
> Date: Sun, 28 Mar 2021 09:41:20 +0800
> Cc: [email-masked]
> 
> > I think that's unrelated, so I don't understand why it hangs
> > indefinitely for you.  Are you sure you waited enough time before
> > giving up?
> 
> It will hang up there forever.

Maybe your network connection blocks some addresses or something?
Otherwise, how to explain that it doesn't block for me?