No host->vm or vm->vm connection after subnet change

[Gustdd]

Hi,

I changed my subnet address (192.168.1.0/24 -> 192.168.3.0/24).
Changed the static ip on all vms, changed the static ip on proxmox, changed proxmox /etc/hosts and dns server.
I can ping between vms and host -> vm fine.

I can't connect to ports between vms or host -> vm, for example: "root@proxmox:~# curl 192.168.3.203:8123 -v" times out.
Is there anything else I need to change?

I checked proxmox firewall doesn't have any rules setup, same as on the old subnet and it's disabled at datacenter level.
Also, I can connect from other machines in the network, for example the same curl request from my pc retrieves home assistant home page.
And I can go to the internet from vms as well, just not to other vm.

From proxmox host

root@proxmox:~# nc 192.168.3.203 8123 -w 3
(UNKNOWN) [192.168.3.203] 8123 (?) : Connection timed out
root@proxmox:~# ping 192.168.3.203
PING 192.168.3.203 (192.168.3.203) 56(84) bytes of data.
64 bytes from 192.168.3.203: icmp_seq=1 ttl=63 time=0.779 ms

From my pc

[gustavo@NULL ze]$ nc 192.168.3.203 8123 -w 3
^C
[gustavo@NULL ze]$ ping 192.168.3.203
PING 192.168.3.203 (192.168.3.203) 56(84) bytes of data.
64 bytes from 192.168.3.203: icmp_seq=1 ttl=63 time=4.50 ms

Gustavo

 

[Gustdd]

I'm going crazy with this...


The VMs have only one interface.
Important note is that VM1 was created with Proxmox VE Helper-Scripts where VM2 was not.

 

[Gustdd]

Hum... Tried creating a new vm and it seems the problem is specific to home assistant, I'll ask their.

Thanks,
Gustavo