Proxmox Server Can’t Connect to Internet or Install Kernel after update.

[Zxcii]

Hey everyone,


Im quite new with proxmox and I’m having some issues with my Proxmox setup and could really use some help.


Problem:
After trying some updates because I couldn't reach my we GUI anymore through my browser my Proxmox server isn’t able to connect to the internet or home network at all. I can’t ping external sites, update packages, or install the kernel.

When I try running commands like:

apt update - it cant connect to the repositories

with apt upgrade it shows this (see picture "upgrade")

then when I try to do apt --fix-broken install it showst me this (see pic upgrade2&3)

Setup details:

• Proxmox version: 9.0
• Installed on: Hardware M.2 SSD
• Network: Static IP through Router
• Internet works on the host machine: No

What I’ve tried so far:

• Checked /etc/network/interfaces for correct IP and gateway
• Tried pinging 8.8.8.8 (which fails and says that it cant connect)
• Rebooted and shutdown device

Still no luck, it seems like Proxmox just can’t resolve or reach the internet.

Thanks in advance for any help, I’ve been stuck on this for a while and just want to get the node updated and connected again.

 

[gunpie]

Can you ping your router?
on the command line of your PVE server:

ping <ip of your router>

If this fails, you should check cables etc.

 

[Zxcii]

Can you ping your router?
on the command line of your PVE server:

ping <ip of your router>

If this fails, you should check cables etc.

I did try to ping my router (192.168.178.1) but it says: "ping: connect: Network is unreachable"

The pic I attached might help some you can also see the command on the bottom.


Edit:
I managed to make the LAN port enabled again the problem was it wasn't initializing any bridge (vmbr0)

so I did:
ip link set enp4s0 up
brctl addbr vmbr0
brctl addif vmbr0 enp4s0
ip addr add 192.168.178.100/24 dev vmbr0
ip link set vmbr0 up
ip route add default via 192.168.178.1

and that worked now I can ping 8.8.8.8 or google.com

also I can finally ssh into the machine again!