Cannot access new ESXi Server added to the network

Strange problem,,

We have four ESXi 6.0 Servers.  Each ESXi Server is connected to a set of ports on a switch in VLAN 10.

The ESXi IP range is:  
ESXi-1 =  - switch port 4
ESXi-2 = - switch port 3
ESXi-3 = - switch port 2
ESXi-4 =  -  switch port 1

We have also desktop VMs that are in used with Horizon View .

We have a pfsense router that routes traffic in to so we can get to the ESXi servers as well as vCenter (on
We no longer needed ESXi-4, so we moved the VMs and powered it down.

The other day, we added a new ESXi 6.5 server and the IP set to (ESXi-5) and I took the cat6 cable that was connected to nic 1 on ESXi-4 (console) and plugged it into nic 1 on ESXi-5 (console).
The port on the switch and ESXi Server are green.

When I am on a desktop VM (, I can ping the all the ESXi Servers except for the new 6.5 ESXi (ESXi-5) that was added.  
However, if am on vCenter (, I can ping all of the ESXi Servers including the new ESXi-5.  

I am not sure if I missed something here, but the routing seems not to be working?

Any ideas
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Seth SimmonsSr. Systems AdministratorCommented:
is the default gateway on ESXi-5 correct?
sjniiiAuthor Commented:
Good call.....i inadvertently set the gateway to the DNS server,,  

I assume this is why i could reach it from only the subset since it would require  a gateway?
Seth SimmonsSr. Systems AdministratorCommented:
exactly...the gateway needs to route destination traffic to the other subnet - in this case to the network

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