Secret key not being recognized.

Are you copying the Secret Key from the Emergency Kit PDF or elsewhere and pasting it into the form, reading and typing it, or using some other method?

I have been having this same problem with signing on to a new computer. I am not sure if it is the secret key. I can sign on to a old computer right next to the new computer. The new computer keeps saying something is wrong that I entered. I have tried multiple times over months.  I want to discard the old computer and I don't want to keep having to use my cell phone.  I am typing the secret key in from the original sheet I printed out on 3/20/2023.  What should I do?

I do have recovery codes that I generated but I don't think I ever used them. I can try using the recovery code and see if it will work but I think it already failed.