It has a lot more than 3 antennas , its the Asus RT-AC5300 which is a beast but primarily for offering two separate 5GHz outputs as well as 2.4GHz. I have tried various distances and it gets worse as I move into other rooms. By some fluke I managed to play a complete 24bit/192kHz file all the way through by optimizing the rotated position of the Poly, but after I moved it I have never managed it again since. I wish the Poly had 5GHz as there is so much less neighbor pollution at that frequency (if that is a potential factor)
How could Chord missed that essential WiFi feature? Heck even the 35 USD Google Chromecast has 5 GHz WiFi yet Poly only has 2.4 GHz.