It was connected to my router until I did the factory reset - now it's
not possible to connect it to anything. If you're having problems, I
wouldn't waste any time trying to investigate right now, until Google
fixes things at their end.
Same here. Not sure why Google can't be bothered to put a message up
when you use their search engine - looks like nobody's Chromecast is
working, anywhere in the world. I've wasted at least an hour doing
factory resets, uninstalling and reinstalling...