Recommended network extender

Thanks for the article link. However my Tablo is hardwire to my main AT&T router so the Tablo quad is not on Wifi.

To be more specific, I can access Tablo via my AT&T wifi on any of the devices using the Tablo app. I can not get any video to play on any device connected to my network extender either 2Ghz or 5Ghz signal. I get a playback error message when trying Live TV or a recording.

As stated in my first post all other streaming services both video and audio works with my current network extender.