Access Self Service (eWeb) by first logging into Office 365.
If you are getting an error login into eWeb go to article 688: Troubleshooting eWeb - Self-Service, https://easternct.makekb.com/entry/688/

Accessing from the O365 portal page:

• Access SelfService (eWeb) through the Office 365 portal at: 
  https://www.office.com/?auth=2&home=1
• If you are prompted to sign in, use your Eastern email address as the username and your Eastern Email password (Do not use your Eastern ID and PIN)
• In the center search bar type eWeb to find eWeb icon. Click on the SelfService (eWeb) icon.
  
  
• It should automatically log you in to SelfService (eWeb) and present your with your information. For future ease of access, pin this icon to your launcher by clicking on the 3 dots to the right of the icon and selecting Pin to launcher.

Accessing from any O365 online page (Outlook, OneDrive or any O365 page):

• Click the Main Menu icon (looks like a waffle or grid) in the top most section 
• On the resulting menu, click All Apps →
• Scroll down until you find the SelfService (eWeb) icon
• Click the SelfService (eWeb) icon, it should automatically log you in to Self Service (eWeb) and present your with your information. For future ease of access, pin this icon to your launcher by clicking on the 3 dots to the right of the icon and selecting Pin to launcher.
  

NOTE: if you see null Setting Up... icons on the lower section of the O365 portal page, access SelfService (eWeb) using the Accessing from any O365 online page (Outlook, OneDrive or any O365 page) instructions above.

If you are looking for the Class Schedule – Search Course Offerings link that use to be available without logging in, you can now find that by logging in to SelfService (eWeb), or by going to the Registrar’s page (http://www.easternct.edu/registrar) and click on Course Offerings where you do not need to login.