OK first let me say I do not know if OPNsense is the causing element but I am hoping someone could assist. I am running OPNsense 20.7.5 at home and have Unbound handling DNS and the DHCP server handling DHCP requests. I also have Pi-Hole handling adlists processing.
If I ping a device by its server name it resolves to its original IP, meaning the IP the server got created and registered to DHCP with. I have since given most servers static IPs, and did this within the DHCP service of OPNsense. When I ping the device by its FQDN it resolves to the proper IP, so somewhere I have incompatible DNS entries.
I double checked both DHCP and Unbound and things seem ok. Any thoughts?