Lose Access after every Restart

[ittechskn]

First - my mistake, you have eno4, but I talked about eno5... sorry, but I think that you get the idea.

> so i disconnected 1 interface and left 1 interface connected and restarted proxmox server to verify and once again right after restart i still didn't receive a connection back

How do you disconnect the interface? Physically or just drop it down by command line? Because if you just drop it by a command, on the next reboot it will be back online. If you want to completely test the "single interface" hypothesis - disable eno4 in /etc/network/interfaces (probaly the commenting out the whole section:

auto eno4
iface eno4 inet manual

and remove it from:

bond-slaves eno3 eno4

will be enough

So, please check this hypothesis. I know that it will be frustrating and time-consuming, but if with a single interface in the bond things work (especially for both of them), then we will left a less space for the issue to hide

Best regards,
NT

I physically removed it from host and checked and same thing apparently. Did some additional work with my colleague today and we managed to get it working(sort of) even after a restart but only with 1 interface being used which is weird. I will reply back tomorrow with the current config maybe that way some other issues can be found here. Thanks for all the assistance so far!