Solved
The parent company is in Canada. I was able to use it last year but it won't this year. Should I instead use the state and zip code of the US location where I am working?
Canada doesn't use zip codes. It uses international postal codes.
When you enter the W-2, choose the option to enter a foreign
address, so the data field will change to "Postal Code?"
See the screen shot below which shows how to enter a W-2
that has a foreign employer address.
Enter your E-mail address. We'll send you an e-mail with instructions to reset your password.