TV Everywhere Channels Missing

Was previously using YouTube TV and Atlantic Broadband. Removed YTTV and now certain channels I should still have will not show up in my guide. I've rescanned all ABB channels and also tried removing and re-authenticating ABB as a source. I haven't tallied them all but the specific channels I've noticed missing that I had prior are Big Ten Network, and SEC Network. Is NFL Network supported? That's also in my ABB service and doesn't show up. All of these channels are available in ABB's TV Everywhere web player.

Click pencil icon under ABB, then Edit at the top right. Scroll down and check what error message shows up next to those channels.

All three of those networks say I am not authorized to view this content.

Are you able to login and watch on https://www.btn2go.com/channel/btnlive

So, BTN recently moved all of their live streaming over to FOX Sports. The URL you gave me directs you to watch there. I logged in at FOX Sports but BTN isn't listed there for my live viewing. Strange. It's in the cable package. There are other stations as well I've noticed like Disney XD not authenticating, despite the other Disney channels working. Could there be something on ABB's end not working to authenticate these stations?

Since Disney+ went live, many users have reported that streams that used to be available with their TVE credentials that are owned by Disney are no longer available. This includes streams related to ESPN, FOX, NGC, ABC and others.

Interesting. SEC is an ESPN station. Though, other ESPN stations are working just fine for me

Can you watch SEC on https://www.espn.com/watch/player?id=6a77f79d-6834-4f6c-87e0-2ed9a55d9dde

Nope. Starting to think this is something on Atlantic Broadband's end

Yea, that not authorized error is coming from them so their system thinks you don't have that channel in your package.