can't access internet from any CT or VM

[aporzio]

Suddenly yesterday none of my ct/vm have an IP. If I give it a manual IP it will show in ip addr but I can only ping localhost. If I set to dhcp then there is no ip shown. I checked the router and I see the MAC address but there is no IP assigned. Every other device in the house works perfectly (including the Proxmox host).

 

[oguz]

hi,

what is your pveversion -v?

how are the network interfaces for the containers configured? can you post a container config? (pct config <CTID>.

also would be helpful to see the file /etc/network/interfaces from your PVE host.

did you change any firewall settings?

 

[wolframio]

i have similar problems, cant resolve any DNS inside CT or VM, and is not my router, firewall, internet, lan or what ever because all my server that not run proxmox dont have dns problems, even DNS on ESXi VM works without touch anything related to DNS.

* I Test Proxmox 6.4 and the last ISO of 7, no luck.

 

[OliPicard]

Hello,

I have been experiencing this issue with Windows Virtual Machines but not with Linux Virtual Machines.

I am using the same network bridge for both the Windows and Linux Virtual Machines. The Window Machine can pick up DCHP and get an internal IP address but is unable to detect the internet. My Linux Virtual Machines are on the same bridge and can access the internet...

I installed the additonal drivers and went though the steps in the video tutorials and still I am unable to get the Windows VMs to access the internet. I can ping the internal gateway without issues but if I ping the external dns it doesn't resolve on the windows VMs.

 

[wolframio]

Hello,

I have been experiencing this issue with Windows Virtual Machines but not with Linux Virtual Machines.

I am using the same network bridge for both the Windows and Linux Virtual Machines. The Window Machine can pick up DCHP and get an internal IP address but is unable to detect the internet. My Linux Virtual Machines are on the same bridge and can access the internet...

I installed the additonal drivers and went though the steps in the video tutorials and still I am unable to get the Windows VMs to access the internet. I can ping the internal gateway without issues but if I ping the external dns it doesn't resolve on the windows VMs.

did you try with ESXi, is free and can be installed on a usb drive (pendrive), if ESXi works out of the box, is a Proxmox issue.


i want to use proxmox because the containers and backups but every VM or CT that i try have no DNS resolution, i can ping and connect to IP but not to domains, i tried almost everything, changing host dns, changing vm dns, use a dns server that is in my lan, disable firewalls, disable IPv6 a even try another gateway from different ISP.