I have searched every way I know to determine if 2019 Pro-Series Basic Stand Alone can be logged into while offline to perform work,

I just called in to Tech Support to ask the question and was told my wait time was over an hour.  I have already spent over an hour searching for the answer.  I can't wait on line another hour.

This is poor reliability.  I simply need to know for productivity.  There are times when I may not have internet access, especially if traveling.