[PVE-User] Proxmox servers don't see each other anymore

[Gerald Brandt]

On 2017-06-19 09:45 AM, Gerald Brandt wrote:
> Hi,
>
> My proxmox server intermittently don't see each other anymore. I keep 
> losing quorum.
>
> I have 3 Proxmox servers, and they will randomly not see each other. 
> For a few seconds proxmox-2 will see proxmox-1, but not proxmox-3. 
> Then it'll switch and proxmox-2 will only see proxmox-3, then it will 
> see no one but itself.
>
> I have the IP and names in /etc/hosts and in DNS.
>
> Any idea where I can start looking?
>
>
> Gerald
>

So, I don't know what to do, except go unicast. What has been working 
for years suddenly failed, and I am lost.

Gerald