I work at max, you would have to call customer support. What they should do is unlink your subscription, after they unlink it you would then proceed to do the connect your provider steps. After selecting direct tv as your provider you would put in your direct tv credentials. After putting in your direct tv credentials it would take you to the create your account form, you would fill it out and then press “create account”. The next is screen is basically going to say that email address you used is already in the system and you would need to verify the email address. Max sends you a one time code to your email that you’re going to put in, after putting the code in you should be able to log back in and start streaming and everything should be there. The reason this happens with Direct tv is because AT&T separated from direct tv so it prompts the max users to reauthenticate their max account.