What? No Wyze products work on the 5 Ghz band yet as far as I know. I thought that 90 code was associated with CamPlus problems; I’ve never seen it, though I have constant issues with connectivity and recording. Good luck with your child; there are other brands that might work better for you; maybe consider a hard wired (not WiFi) system if reliability is paramount.
I got Error Code 90 out of the blue about a week ago. I’ve had the Wyze Cam Pan since Jan 2020… I’ve tried power cycling the cam, reinstalling the app. Nothing works. I’m back to researching cams again to find a better product.
So disappointing. I was relieved to see this post because it confirmed that it’s an unresolved Wyze issue and not something on my end.