[SOLVED] Unable to access internet from VM

[Toastyyy3]

Hey,


in short: my VM can‘t ping the router or external IPs even though the VM is listed in my routers devices. For technical details see below.

Long version:
i recently installed raspi debian and then the Proxmox Port for Arm64 on my Pi. Everything running perfectly fine so far.

However, I‘m trying to get a Home Assistant VM working for a few days already.

I use the helper script PiMox from helper-scripts.com and sometimes Home Assistant doesn‘t properly boot but gets stuck with „Waiting for Home Assistant CLI to start“ and sometimes it boots properly. I have one properly booting system up and this system does not have an internet connection. I tried for several days but I just can‘t get it to work.

So here all the details I can think of right now:

• Raspberry Pi 4 with 8GB RAM connected via eth to router
• Default settings when installing Home Assistant PiMox
• Host has 192.168.0.2, Router has 192.168.0.1, Home Assistant shall have 192.168.0.3 once setup
• vmbr0 configured according to the wiki (gateway is 192.168.0.1) and IP is 192.168.0.2/24 and it is using eth0
• From the host I can ping HA and vice versa. From the host I can also ping the router or 8.8.8.8. From HA i can‘t ping the router or an external IP.
• On HA the connection with enp0s11 states it‘s connected. I set the IP of the connection to 192.168.0.3/24 and the gateway to the router. I couldn‘t observe any difference in changing the dns of the connection
• ip a states something like enp0s11 192.168.0.3/24 and 192.168.0.255 and that the device is UP
• ip route states something like:

  default via 192.168.0.1 dev enp0s11 192.168.0.0/24 dev enp0s11 proto kernel scope link src 192.168.0.3

• The routers DNS servers are 1.1.1.1 and 8.8.8.8
• No firewall activated in proxmox
• Especially strange: The home assistant entity is shown in my router with 192.168.0.3 so there seems to be some kind of connection…
• The /etc/network/interfaces on the host looks as follows

auto lo
iface lo inet loopback

auto eth0
iface eth0 inet manual

auto vmbr0
iface vmbr0 inet static
    address 192.168.0.2/24
    netmask 255.255.255.0
    gateway 192.168.0.1
    bridge_ports eth0
    bridge_stp off
    bridge_fd 0

There was about half an hour right after the setup where it was connected to the internet but then I assigned more disk space to HA and when I rebootet HA, the internet was gone, even though I didn‘t change anything else. I believe this was the moment it broke.

Originally I accepted my fate and tried to reinstall HA but then the „Waiting for Home Assistant CLI to start“ error occurred and as I wasn‘t able to find a solution for that either, I felt like the internet problem might be easier to resolve.

I read several forum posts and searched the entire internet but nothing helped.



Let me know if you need any further information.



I can provide screenshots once I get home.



Thank you in advance for your help! Very much appreciate it!

 

[Toastyyy3]

For anyone stumbling across the same problem:
Apparently you cannot have docker installed on the host. I found a GitHub issue where someone had a similar problem and the developer suggested to uninstall docker.
I setup the system completely from scratch once again and did not install docker and then it worked.