Can't connect to GUI after creating sub-interface

[Dwarf]

I'm trying to setup VLANs on proxmox, and many tutorials start by creating a management VLAN.
My default interface is:

auto vmbr0
iface vmbr0 inet static
    address 192.168.50.50/24
    gateway 192.168.50.1
    bridge-ports eno1
    bridge-stp off
    bridge-fd 0
    bridge-vlan-aware yes
    bridge-vids 2-4094

And this works fine, I can connect to 192.168.50.50:8006 and see the proxmox GUI.

My understanding is that I can create VLAN 50 to separate the management IP from the default bridge:

auto vmbr0.50
iface vmbr0.50 inet static
    address 192.168.50.50/24
    gateway 192.168.50.1

auto vmbr0
iface vmbr0 inet static
    bridge-ports eno1
    bridge-stp off
    bridge-fd 0
    bridge-vlan-aware yes
    bridge-vids 2-4094

But when I save and reboot the server, I can no longer reach it at 192.168.50.50:8006?

Additional info if it matters:
Router:
- Asus AX86U PRO
- The port is set to All(Default) NOT Trunk as I hear it works differently?

Server:
- Proxmox is running on a single NIC Intel NUC
- Connected via ethernet cable to router port 1

 

[the other]

Hey there,
Looking into the official manual > https://pve.proxmox.com/wiki/Network_Configuration#sysadmin_network_vlan find an example like this:

auto lo
iface lo inet loopback

iface eno1 inet manual


auto vmbr0.5
iface vmbr0.5 inet static
        address  10.10.10.2/24
        gateway  10.10.10.1

auto vmbr0
iface vmbr0 inet manual
        bridge-ports eno1
        bridge-stp off
        bridge-fd 0
        bridge-vlan-aware yes
        bridge-vids 2-4094

So, have you tried to set vmbr0 to manual instead of static?
I have the same setting here, proxmox management IF in vlan 5 with IP out of VLAN 5 IP range, vlan aware. Works like a Charme.

 

[Dwarf]

Unfortunately it still doesn't work with iface vmbr0 inet manual
Could it be a router issue? I'm very new to networking in general but trying to learn.

 

[Onslow]

Hi, @Dwarf
Make sure that your PC (or whatever device you are trying to reach PVE from) is in the same VLAN as the PVE.