I configured our newly purchased TS3410RN to use as archive area for some of our company infrequently used data.
I used DHCP to connect Lan1 and Lan2 to two different subnets. (i.e. LAN1 10.10.100.x and LAN2 10.10.1.x) I needed to be able to access the NAS from any of our servers which were on other subnets (VLAN) on our company network.
I found that the I was only able to reach the NAS from systems on the 10.10.100.x or 10.10.1.1 network.
In order to reach the other VLAN's I had to edit the properties of the Network settings. The default gateway under network settings was set to 'unassigned'. Even though I used DHCP to obtain IP address, subnet, gateway and dns settings, for some reason this field was not updated on the TeraStation. I had to manually update the gateway and point it to the LAN1 settings.
After doing this I was able to successfully access the NAS from any of my VLAN's using the LAN1 port as the gateway.