There are two ways to login to SharePoint.
01. Login through Neumann University website.
Go to the Neumann University site click Login and select SharePoint. Use your neumann user name and password to login.
02. Login From web browser. Microsoft recommends internet explorer or Edge, but SharePoint will work with other browsers as well (Chrome, Firefox)
Open up a web browser and type sharepoint.neumann.edu
Extra: What is SharePoint? and How to log into SharePoint?