Warmest welcome here in the Roku Community, @bbouchardumass!
We'd be more than happy to assist you with the playback issue you have been experiencing with the Netflix app.
May we first know if you have received any error messages when trying to access the Netflix app? Also, does this only happen to this specific app?
In the meantime, visit our Support article on How to resolve channel playback issues to help you resolve this.
Please keep us posted on how it goes and we'll continue assisting you from there.
Best regards,
Carly
Carly Y.
Roku Community Moderator