In the following link there are guides. The manual should be selected depending on the operating system.

On the username/password network identification screen, write:

Users of academic and administrative staff:

Username used for uniform Technion identification (technion.ac.il) username@technion.ac.il example

Students for all degrees:
username used for uniform Technion identification campus

username@campus.technion.ac.il

Password login for this account managed on the account management site.