First of all, I'm not expert.
I setup my Proxmox VE about year and a half ago on one HP workstation (tower PC) and have two VM's and three LXC's. I have daily backups setup (during the night) and Metric server to InfluxDB (one of LXC containers). VE version is 7.4-17.
The problem is...
Since we applied the HA configuration in ProxMox 6.3-3 . The PVE nodes start randomly rebooting every few hours with no any reason. We reverted the setup, removing HA and quorum groups and system back to its normal state, however without HA. System has 5 PVE nodes. Please, advise.