There are a few casting channels/apps that you can install on your cell phone/mobile device and Roku device. This will allow you to cast online/web content (like Newsmax streams from their website) through your Roku to your TV.
You can look at Web Video Caster (both free and paid version, but free works just fine). This is the app I use to cast web content to my Roku devices.
https://channelstore.roku.com/details/dd37e6d096d3197a9578787890118e33/web-video-caster-receiver
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This will at least give you an option to watch on your larger screens until resolved.
Thanks for the post NewsMax is now working with Roku
