Network not usable - drops Interfaces all the time - X540-T2

[idontgetit]

Hi i am new to this Forum

i came from Networking site and i try to get more knowledge on Virtualization in my Homelab..
first i dont get it why Proxmox has so much issues to get a stable NetworkConfiguration with absolute Standard Network Cards

i mean i have network but i cant Upload an Image or as soon a little load get on it Proxmox will loose its Network Interfaces it is real annoying ....

in this case i use Intel X540-T2

i find so many Reports with Google about that issue but it seems on none of them it gets solved..

could someone help me out ?
maybe post me a good tutorial or site with the most common Commands to do Troubleshooting ?

i now fight since 2 weeks with that to me simple issue that shouldnt exist in first place ;(
i could not solve it and honestly i loose interest in that system more and more but i will fight if i can see progress ...

 

[Finale3333]

With technology, overcoming frustration is the first step to becoming a master.

First things first, check logs and see if anything is throwing errors have you done that?

View kernel logs

dmesg

View system logs

journalctl -e

If you have monitor and keyboard to the pve box check the state of the network interfaces when they drop

ip is a nifty tool to do networking stuff. Below command will show you interfaces and their states

ip link

To learn more about those tools use the man command or search online for their docs or further examples.