I am casting from my chromebook to LG TV. I have mesh eero wifi, plenty of bandwidth. I can see very often that the video on the chromebook screen is perfect, yet the TV seems to drop into lower resolution quite often. Happens quite often and I try rebooting chromecast right before use, no real difference.
Anything I can check?
Thanks for reaching out. Let's sort this out.
A few questions: what type of Chromecast device do you have? When did the problem start? How close are the devices to each other?
Try these steps:
Let me know how it goes.