The Onn device would be perfect for my applications on paper, but after watching Twitch via Cast on it, it consistently drops to a message that says "something went wrong, try casting again" and disconnects from my Wi-Fi. It reconnects pretty soon after, automatically, but the interruption makes it completely unusable compared to the non-AndroidTV Chromecast V3 I'm trying to replace with it (mostly for SmartTubeNext).
Anyone else have issues with this device not staying connected to Wi-Fi? I've already returned one of these Onn 4k devices due to this problem, but the second one having the same problem seems like something to ask other users about. The device is approximately 4 feet away from my Wi-Fi router (Linksys Gigabit WRT1900ACS). I could get a split Ethernet/Power adapter dongle but I don't want to throw more money at this $20 thing if the issue can be fixed in software (and if I can get this one functioning perfectly, I want to replace the Chromecast that's in another room that won't be able to use a wired connection). The adapter people seem to be recommending for power + ethernet on this device is like $15 by itself.
EDIT: I figured it out in my case. No idea why, but the default DNS on the device are set to 8.8.8.8 and 8.8.4.4, changed these to 9.9.9.9 and 1.1.1.1 and it hasn't thrown the error since.
Update AGAIN: I switched to Ethernet anyway, and the problem came back until I also changed the DNS settings off of Google DNS for the Ethernet connection.
I have not run into any WiFi issues, the device my daily driver. its connected on the 5 GHz connection.