Streaming is via wi fi only
Thanks for your post and apologies to hear that you are having an issue streaming from your iPhone.
When trying to stream what error message are you getting exactly? Does this happen on every channel you try to view with the streaming sign?
When looking at Channel 4, do you see a streaming icon to the left of it or is it blank?
Have you recently upgraded to the new iOS 10?
Come back and let us know how you get on.
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