@IG-88 I have connected all cables back up, SFP+ PC ---> to Switch --> to DSM, then all get connected to 1Gb Router, Switch gives DHCP TO SFP+, that gives DSM 192.168 x.x after that.
Dsm and pc get DHCP from Router.
I only get 3 192.168.x.x DHCP in DSM as its only 3 mac's in the grub.cfg.
If i disconnect the 1gb cable from switch reboot dsm then the SFP+ just reverts back to 192.254.x.x, so the microtik switch is giving me DHCP.
Router is an Asus RT-AC66U B1, with dd-wrt Merlin.
If I disconnect the 2 dac's in the pc my 2 port card doesn't get assigned any ip address other that it gets done automatically, maybe i should look into that and see if it's a config i need to make for all ports to be assigned an ip address.
Thanks bud