I'm using ESXi version 6.7.0 Update 3 (Build 14320388)
I have a problem I've never encountered before:
I created 2 more vSwitches to have 3 subnets (LAN, DMZ and WAN)
LAN and WAN are not a problem, but the switch associated with the DMZ does not work.
Everything seems normal but the VMs are not connected (no DHCP and no pinging between them)
I've tried to recreate another vSwitch but the problem remains
does anyone have any idea what's going on and how to fix it?
Moderator: Moved to vSphere vNetwork
Check if there is not a local firewall on operating systems and if it possible disable it for tests.
You said no DHCP, have you tried manually assigning IP addresses to confirm they ping?
The vSwitch doesnt have any physical network adapters so the VMs wouldnt be able to access any services e.g. DHCP on another VLAN or another host.
I suspect you just need to add some physical adapters to the vSwitch and ensure your physical switch is correctly configured