[SOLVED] Created cluster on OLD IP Address, now I can't join machines to it

[GCIntlMK]

PVE 6.2-4 updated today. I created a cluster and the Join information still has 10.50.1.200 even though I changed the IP Address of the server to 10.51.0.200.

Now no other machines can connect to it. How do I fix that? Can I delete the entire cluster?

DISREGARD: The Hosts file never saved or reverted or I just didn't click save.