Using Tablo on Samsung TV - WTF!

using Samsung Smart TV with Smart Hub - the app becomes non-responsive to TV and we have confirmed that it is on the Network, we have uninstalled and re-installed the APP, still doesn’t work.

We also reset smart hub completely, brand new router, super fast internet connection.

We also have a ROKU connected to the same TABLO in another room hooked up to same network, works perfect and fast.

Please help!