Hope this helps someone!! Smart view app stopped working about a year ago I searched the internet for a solution and found nothing this is what I did to get it to work again for me.
What has worked for me is turning off the ipv6. Go to settings general >network>expert settings >ipv6 disable
just got it to work for me by doing this also make sure ip remote is enabled. also under general >external device manager>device connect manager>access notification always on. This is how I fixed my SmartView after I made those changes I got notification to let my phone connect to the tv and I pressed allow and the app started working again !!! I have been trying and searching for over a year to make this work hopefully this helps some one else with the same proble .. my tv is hard wired and I’m using a iPhone
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