HBO channel will not work

I have a plan that includes the HBO channels and I pay for HBO Max streaming. Yesterday the channels all disappeared from my guide and when I go to the channel it says we need a subscription. I did a full chat with a rep yesterday and she tried a couple of things then said my system should be fully reset in an hour and it should work. It still isn't working. Any suggestions? The streaming works fine, it's just all of the channels I have always gotten that are gone. I did click to subscribe but it ends up looping back to the channel that tells me I need to subscribe.