Hi Community!.
I hope you're very well! I have a problem related ArcGIS Api Python and Jupyter. The issue is that the system not reconogzed the username or password of my account ArcGIS .

I follow all the instructions from the web page help, (Install and set up | ArcGIS for Developers) and without success 
The proposed is can configure a project of workforce through of this help: workforce-scripts/UC 2018 - 1 - Configuring A Project.ipynb at master · Esri/workforce-scripts · GitHub
I tried from help of github esri but this fail!

Installed:
arcgis 1.4.1 (from Arcgis pro (Python))
jupyter notebook (desktop)
conda
Do you have any experience with this issue or that could be failing?
Regards!
Braulio.