Thanks for the input.
I’ve been trying to figure how mine is “broken”.
Everything looks fine up to the point of selecting a video to watch. I think it then stalls trying to play the ad that normally comes before the video.
If I play the video on my phone using the same account and then cast it to the Humax, it plays ok on the Humax.
Other apps that stream like iPlayer work on and there haven’t been any changes to the router or any other equipment.
I tried resetting the app, but it made no difference.
We have a Roku which we can use for YouTube, as we have to use it for itvx (which is broken on the Humax) but it’s irritating to have something broken that was working before.