Issue with pci-passthrough Intel 82576 NIC

[FarmServer]

I have Opnsense in a xen HVM. I have passed several realtek 8111 NICs to Opnsense with no issues. But I have 1 card with two Intel 82576 NICs on it that has issues.

Opnsense 'sees' these NICs and identifies them as igb0 and igb1 which implies to me that the correct drivers are also loaded. But when I plug in a device to a NIC it is unable to get DHCP configuration from Opnsense and cannot communicate through the card(one orange light and one green light). Plugging in the same device into one of the Realtek NICs works fine.

All rules are the same between an 8111 NIC and the 82576 NICs as far as I can tell.
Each device has its own static IPv4 addy.
A firewall rule of let ipv4 from (yournamehere)net to any.
An autocreated NAT outbound rule for all networks to wan.
DHCP enabled on each lan giving a range of assignable addresses.
Unbound DNS resolver enabled and 'Enable Forwarding mode' set.

I am unsure of where to start to localize the issue and figured I would ask here and save some time.
Thanks

[FarmServer]

I forgot to also mention, both of these NICs did work when I had Opnsense installed as standalone.