I have TW (Spectrum) and my own router to make Wifi. Speedtest on AppleTv wireless is 117.49 down and 11.89 up. I pay for 100 down and 10 up. Top of line equipment gives too of line performance. I have Arris SB6190 cable Modem, TP Link Archer C7 router, cat 6 from cable modem to router.
Is your Tablo connected to your router via WiFi is the question?
Just stating facts. Yes everything including the Tablo are wifi