TL;DR
Lowering ‘Max Recording Quailty’ worked around weak signal issues on our Tablo.
What doesn’t make sense is all other channels, which have strong signals, by the way, never caused the Roku Tablo app to buffer, and never caused the Tablo to crash, and reboot.
@TabloTV I thought changing ‘Max Recording Quality’ would affect only these 2 items:
Video, and audio quality (personal preference);
Network thruput (lower the quality if network can’t handle it).
Long explanation…
For 3 years, our Tablo dual tuner had weak signal issues with 1 channel, 5-1 CBS @ 1080i.
Watching that channel resulted in the following:
Roku Tablo app frequently reloading;
Tablo crashing, and rebooting.
No issues with any other channel, including ones broadcast at 1080i, 720p, and 480i.
Changed ‘Max Recording Quality’ from…
HD 720 - 5 Mbps (recommended)
to…
HD 720 - 3 Mbps
Now, when watching that weak signal channel, there is no Roku Tablo app buffering, and the Tablo doesn’t crash, and reboot.