This could be for some of these reasons:
- Because the VPN is not connected correctly; check the information to access the digital resources from outside the University.
- Because the library is not subscribed to this resource. For journals, check holdings in Polibuscador.
- Because the computer is connected to a proxy. In this case, disconnect it to allow IP access.
- Because this database, e-journal or e-book does not use IP authentication but password. You can see them when you sign in PoliBuscador.
