I am having the same problem as these people:
Chromecast setup goes smoothly, just won't connect once setup is over. My router is dual-band, I've tried on both bands. I've factory reset the chromecast and reset my router. I've uninstalled and reinstalled the home app. Chromecast is undetectable from multiple devices including a PC, iPad, Android phone, and iPhone.
Hey there bigswifty,
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