I just tried hard wiring my Tablo Dual lite to a router, and the router is reporting it as a 100 megabit connection; I would have though it should show up as a gigabit. Is this a hardware limitation on the Tablo, or just a problem with my cables or switch?
It’s a 100Mbps port. It’s not your hardware.
There is no use case for the Tablo that willl saturate the 100 Mbps Ethernet connection.