Thanks for getting back to me.
So, my IP Addresses have changed a bit because I have a new guest that I'm currently using but I'm experiencing the same issue. I'm therefore only pinging just one guest at this point.
The guests cannot reach the host and vice-versa.
So, the new guest is Ubuntu as well and its IP Address is 192.168.1.19
192.168.1.19 (guest)
192.168.1.21 (host)
ARP Table from Guest when pinging from host (192.168.1.21) to guest (192.168.1.19)
s2support@s2ncinit:~$ arp -a
? (192.168.1.19) at 00:0c:29:e2:74:77 [ether] on eth0
? (192.168.1.1) at 00:24:b2:6f:66:e8 [ether] on eth0
ARP Table from Guest (192.168.1.19) when pinging from another system (192.168.1.20) on the network
s2support@s2ncinit:~$ arp -a
? (192.168.1.19) at 00:0c:29:e2:74:77 [ether] on eth0
? (192.168.1.20) at 5c:26:0a:31:fd:8a [ether] on eth0
? (192.168.1.1) at 00:24:b2:6f:66:e8 [ether] on eth0