Either way, you should contact the content provider.
If it's Roku, it's because the new company didn't provide updated information. If it's the content provider, well, it's the content provider. So, either way, you should start with the provider and go from there.
It's been a while since I dealt with WOW, and that was in Columbus GA not OH. Anyway, I'm wondering if they are using WatchTVEverywhere as the handler for the authentication. One provider in the Columbus (GA) area used them, and I was thinking it was WOW.
I don't see either listed on the WatchTVEverywhere Website, so I could me remembering wrong, or they could have transitioned to their own. Was WOW using that?
DBDukes Roku Community Streaming Expert Note: I am not a Roku employee.
If this post solves your problem please help others find this answer and click "Accept as Solution."
Re: Breezeline Ohio all NBC channel not authorized
My guess is that when you logged into those apps you had to choose a cable provider (WOW). You are now a Breeze line customer, not a WOW customer. Try going back through setup to choose a new provider.