OK. Well, as I said, in my installation on my laptop I have all the VMWare NICs configured as bridged (click the NIC icons on the bottom right and then Settings...).
If you want to try using DHCP enter this command: tmsh modify sys global-settings host-addr-mode management mgmt-dhcp enabled (you might need to restart too: shutdown -r now). However, just changing the management IP to something in the same network as your local PC/laptop might also do the trick.
Note I'm no VE expert so I'm happy to be corrected by someone with more experience =]