okay, after a reboot I get error 595.
I noticed that here:
/etc/pve/.members
the IP is still wrong:
{
"nodename": "supermicro",
"version": 5,
"cluster": { "name": "Cluster", "version": 10, "nodes": 2, "quorate": 1 },
"nodelist": {
"sm2": { "id": 2, "online": 0, "ip": "192.168.50.21"}...