If the login window contains two fields:
1. Type ad.uillinois.edu\netid (be sure to use backslash "\" (not "/") in the User Name field
2. Type your password
OR1. Type netid@illinois.edu in the User Name field
2. Type your password
If the login window contains three fields: 1. Type your NetID
2. Type your password in the Password field
3. Type ad.uillinois.edu in the domain field