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Why can't I log in to the school library outside the school, prompting that the certification is rejected? What's the matter? Do you want to study literary papers? This is urgent.
Because the IP access of the electronic database resources purchased by the school library is limited.

Outside the IP range, it cannot be used.

But you can access the campus network through VPN, and then connect to access the database resources.

So you can get what you want.

Most university libraries or network centers have vpn services, but most of them are for teachers, and some of them are extended to master students and doctoral students. VPN popularized to undergraduates should be few.