VM to VM over LAN through pfSense VM not working.

[Gambit22]

Hello Everyone,
I am looking for some input on my Virtual Network. I have 4 VMs on a Virtual Box Hypervisor. one is pfSense, the other is a CentOS minimal install, another CentOS minimal Install, and a Windows 10 OS. all VMs are on the LAN side of the pfSense and can all get internet access through my pfSense which WAN is bridged to my host iMac. The main issue is I'm trying to view my Splunk Web GUI from my Windows 10 browser, but it seems no matter what port forwarding, NAT, Firewall, configurations I can change, there is no connectivity between my VMs on any port or protocol, the main ones I would like access to though are ports 22 and 80. I will put up a post tomorrow morning with my Port Forwarding Rules and my Firewall Configs.

The issue is ICMP is working between VMS as they can ping each other over LAN. So there is nothing inherent about any of the operating systems that is blocking ICMP traffic. Ive done a couple of TCP dumps as well, which is capturing a lot of unanswered ARP requests and some admin prohibited filters for connections between the VMs.

Another interesting aspect is through PfSense's Diagnostics tab, through the test port function, if I try to test either port 80 or port 22 on either of my CentOS VMS respectively, they both say the connection fails. This is from the pfSense side of the communication issue. What I don't understand is that my firewall on these VMs has been manually configured by myself to allow communications on these ports.

until I can post more details, is there an aspect of communicating between VMs on the same LAN through pfSense that I'm not considering here? I'm getting quite frustrated with this and I feel like I'm exhausting my options for settings I can configure to get this to work.

configuration made so far:
port forwarding
Firewall pfSense
Firewall CentOS internal

and still nothing