How do I setup my Seagate goflex home network drive with time capsule?

I just replaced my Netgear wireless AC router, which died after a month of use, with a 2 tb time capsule, 4th gen. So far so good, except I am unable to connect my seagate 1 tb goflex home network drive. Connecting the time capsule to my comcast modem and setup to other devices has been fairly simple, other than this network drive. Any advice would be very helpful in this situation.