This has been a known issue with no real way to guarantee a fix. I have
a Chromecast Ultra and at first changing the 5ghz wifi channel to a
higher number worked until it didn't. I've changed SSID, channel, 5ghz
to 2.4, shut off most all other wifi de...
I've changed SSID, channel, 5 ghz to 2.4 ghz, factory reset, and even
created a new SSID just for it with no luck of it working properly. I
can reset it and readd it then it just drops again. At this point I
wouldn't be surprised if it was something ...
I have no idea. I got so frustrated with it one night that I literally
drove two hours round trip to get the Chromecast with Google TV. Maybe
when I need to add the Chromecast ultra to something it'll work.