Generally most users just have a LAN with their single networked sub-net router. Whether you run an intranet or LAN, many users run a variety of services across their networks - elaborate setups. You can find pictures of home “wire closets” here.
Here’s the sad truth (IMO, design flaw)
There’s a plethora of information around about why and all the “complaints” how users try to get around as well as Third Party Apps (Rippers etc.) 3rd Party Apps used to negate internet connectivity, then difference between the different tablo platforms.
Had an HDMI version been available years ago I’d probably have ended up with one. In the end, I’ve made this network one work with 3rd part apps and what I’ve discovered here at the Tablo Community forum.
A snip from a post from TabloSupport as to how/why we may be stuck with internet:
Our focus is also on developing the product to be easy-to-use for the average non-technical user.
…
That being said, we acknowledge that there are ways we can improve the product for advanced users, including providing alternatives to the current network discovery process.