Here is an important piece which is lacking. I too had issues downloading 2017 due to needing to register. What they fail to mention is the only way to register is to complete a 2019 Return. I added as little info as needed to get through the return. Once I completed Fed and State, I got the option to register. Please note; No, you don’t need to file and I’m not sure I need to do state, I just blew through it as a precaution. Once done, I successfully downloaded my 2017 return
