Wireless casting is convenient, but it’s not without its quirks. While @kakeru’s tips are absolutely solid, I’d like to throw in a couple of additional angles that might save you some headaches:
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Miracast Adapters: If your TV doesn’t support AirPlay or you’re having issues with the app route, you might want to consider a Miracast adapter. These tiny devices plug into your TV’s HDMI port and allow for casting/mirroring from your iPhone. It’s not as seamless as AirPlay, but it’s a decent alternative.
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Turn off Bluetooth: Weird as it sounds, Bluetooth can sometimes interfere with Wi-Fi-based casting. If you’re having trouble, try turning off Bluetooth on your iPhone and see if that smooths things out.
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Update Firmware: Sometimes the simplest fixes are the best. Make sure both your iPhone and Samsung TV firmware are up to date. Outdated software can throw a wrench into your casting efforts.
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Reset Network Settings: If you’re still stuck, resetting network settings on both devices can sometimes work magic. On your iPhone, go to Settings > General > Reset > Reset Network Settings. Keep in mind this will wipe out saved Wi-Fi passwords, so you’ll need to re-enter them.
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Local Network Permissions: With iOS 14 and later, apps need explicit permission to communicate with devices on your local network. Double-check that the Samsung Smart View app or DoCast app has these permissions enabled under Settings > Privacy > Local Network.
Happy casting, and hope these extra tips help you—if you get stuck again, don’t hesitate to ask!