Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer to your question.
What sort of login ID, on what device, or to what sort of account, have you forgotten, please?
(I regret that I am not able to offer Live Phone Call service at this time; However, your request is still open to other Experts in this category, and one of them may pick up on it at any time.)
What login do you have trouble with? the login to the Harmony control box?
Which exact model is the Harmony remote in question?
Do you have the MyHarmony software on your computer?