KR1 doesn't appear on JKHub's server list, but KR2 does. Is this a temporary issue? Strangely enough: KR1 appears when I search for it in-game (I'm running EJK).
Strange!
I was having issues seeing it too, but figured it was user error.
A couple temporary suggestions are, you can add it to your favorites list using:
IP 192.223.29.244
Port 29070
Or open the console and type:
/connect 192.223.29.244:29070
The last one should be copy and pastable.
Someone else may have more insight on the main list issue.