This sounds more like an LG issue than the Roku and as an LG owner myself, I'd recommend you call support. Where the Roku settings are concerned, I have never owned a stick, but use the Auto setting for display/screen which allows the Roku to detect the resolution/type of TV. Also wondering if you've used a network app like WiFi Analyzer for Android or something similar for iPhone. These apps show channel congestion which is often the culprit for poor connectivity. Best of success, regardless
Power User (film maker)
Mill Valley, CA
Jonathan
Roku Ultra 4800R; LG OLED55B7A, ONKYO TX-NR636, Panasonic Blu Ray, Definitive Studio Monitor 450 (L/R), Definitive LCR 2000 (center), Definitive 10" sub-woofer, Definitive surrounds. Motorola MB8600 modem. Asus RT-AX86S WiFi 6 router. Western Digital Power Line network adapters