Cannot Ping ESXI host from Guest VM's

Hi,
I'm racking my brains as to why I cannot get my vcenter to connect to my ESXi machine (the vcenter is virtualised as a guest VM on the ESXi host).

I tracked down the issue to being related to not being able to ping the ESXi machine. Both of my VM's based on this parent have this issue

From there I've tracked down the issue is probably related to my vSphere Standard Switches.
Currently I have setup one NIC for management one vSwitch0 and my VM-network (with my guest vm's) on Vswitch1.

I think this is most probably the reason they are unable to ping the host. there is no vcenter configuration at the moment as this is a new system that I have just tried to implement vcenter into (hence when I found the issue).

From my laptop plugged into the same switch I am able to ping all nodes correctly and can remote desktop onto machines and connect via vsphere onto the ESXi Host.

Please help.