DHCP problem

Hi

Having problems getting DHCP to work on custom vlan 10, routing is done by the firewall, the firewall has a DHCP relay configured and there are rules allowing udp 67 and 8.

If a client is plugged in to the firewall it works fine but not when connected to the switch.

firewall > core > switch > client

no dhcp snooping

core has static route to the network that the dhcp server resides

Any ideas