In my case I did a complete reset of my iphone, that temporarily solved my problem, at least I could connect to chromecast with spotify, youtube, etc, in addition to being able to connect a gopro. Apparently everything failed again when my backup was restored. To date I still have the same problem, in the privacy settings the local network is enabled, however every time I want to connect it tells me that I must give access and I cannot see my local network devices. IOS version: 14.4 FIX IT please!