Sorry this response took awhile.
I upgraded our home WIFI network from 801.11n to 801.11ac and the buffering went away on our cellphones, which can do 801.11ac. But I still have buffering on the Android tablet that I bought to use with Tablo. It only does 801.11n.
Conclusion: Tablo should not advertise that it works on slower networks, such as 801.11n. It doesn’t.