What should I do if only one device can log in to the campus network of Lvliang University?

Only authorized by the background administrator can it be solved. Lvliang College is located in the new urban area of Lvliang City in the northwest of Shanxi Province. Only one device can be registered in the campus network of our college, and it needs the authorization of the background administrator to solve it. This university is a famous old revolutionary base area. During the revolutionary war, it was the main battlefield of the Red Army's eastward expedition, the capital of the Shansi-Suiyuan Border Region and the seat of the Central Committee, which made great contributions to the victory of the China Revolution.