Broken fresh install, GUI not working anymore after cluster configuration

[Pascal Lambert]

Hello.
I am just starting my first sandbox with Proxmox and allready managed to broke it.
After playing with the cluster, the 2nd host is not reachable in GUI.
IP configuration is OK since I can SSH to the 2nd host, but
no reply from https://2ndhostip:8086
1st host GUI shows 2nd host unreachable
curl -sk https://localhost:8006 from 2nd host gives no answer

Any advices ?

 

[Pascal Lambert]

Firewall may not be the issue because from nmap I get
Discovered open port 8006/tcp on 192.168.1.65
(2nd host is 192.168.1.65)

 

[Pascal Lambert]

I will rebuild from scratch.
Issue can get closed