Is this your first time here?
In order to log in into the UPeL e-learning platform, you need to be registered in the USOS. All users having account in USOS can activate their account in UPeL platform through define their password: archive.cel.agh.edu.pl/password. Each AGH faculty has its own instance of UPeL*.
For students their album number works as a login.
For teachers their e-mail address registered in USOS works as a login.
*Teachers can log in to all UPeL instance, but students can log in only to their faculty instance.