Fortinet MC1550VE

We are running our installation on a Vmware workstation12.0 and having issues with Vlans.

 VLAN NameVlan300 Tag    Valid range: [1-4094], Required  Ethernet Interface Index    Valid range: [1-2]  IP Address  172.17.0.3  Netmask  255.255.0.0  IP Address of the Default Gateway  172.17.0.1  Override Default DHCP Server Flag   On Off  DHCP Server IP Address  192.168.100.12   DHCP Relay Pass-Through  On  

Our clients are getting an IP adress from our dhcp server from 172 Pool.

I can ping Ip Adress 172.17.0.3 but not the default gateway.

Could it be Vmware having issues passing vlans through?

Hope someone can help me out here.