[SOLVED] Server Proxmox (host) not reachable, the guest works fine

[budspencer]

Yesterday I ordered a new server from Hetzner (xeon, 32gb ram, 500gb ssd)
Installed debian minimal 9.5 + Proxmox
I restored 2 virtual machines from another server, everthing works finde

Until this morning at 08:00 the server (host) was not available, no Proxmox Gui, no Webmin, no access via ssh and ping 100% packet loss.

The two proxmox clients are reachable, web, ssh and postfix works fine


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Tonight I reinstalled the server, now after 7 hour exactly the same problem again, the Proxmox server (host) is not reachable, the two guest work fine (web, ssh)

Some ideas?

 

[budspencer]

i find the error.

I have not adapted the /etc/interface/network to the Proxmox environment.