Hi thereI did setup a Debian Jessie and on top I install proxmox 4.All seems to work fine but after a while I can't ping the proxmox host IP anymore. I can't ssh into it anymore.The proxmox webinterface still works though.So, I have to reboot the whole machine, then it's connectable for a while and during that time I can do upgrades or install other stuff. The problem is, I like to do backups with rsync over ssh and that's impossible.