PVE Server loses contents of interfaces file on reboot

[Damon1974]

PVE Server loses contents of interfaces file on reboot

I am seeing strange behavior. The last couple of reboots of my PVE server have resulted in not being able to connect to the server once it boots back up. I login with ILO Console to the server and when I check the /etc/network/interfaces file it shows as empty. Once I ran into this the first time, I made a backup of the file once I was able to recreate the networking back to a usable state. I made a copy of the interfaces file in the same directory. Now when it boots up, the interfaces file is blank, but my backup file in the same directory is there. I end up doing a "cp interfaces_backup.bak interfaces", then having to do "systemctl restart networking". Then the server is back online until the next reboot.

Any idea what would cause the interfaces to be blank after reboot?

Interfaces file is attached. (Not super complicated network setup)
Version of Proxmox: Proxmox VE 8.4.5 x86_64

 

[Damon1974]

I checked the crontab and noticed there were jobs in there created from the LLDPD process. I removed the cron jobs, and the LLDPD package. Rebooted and the interfaces file was still there. I had also made a copy of the interfaces to interfaces.bak. I'm not sure which changed fixed it, but if it sticks I am happy. If someone knows more be happy to hear thoughts. For now looks like it can reboot successfully and keep the networking.