Generally, we take CET-4 in the second semester of our freshman year, and the school will wait until we fill out an application form for network cable. Basically, these things are only started in sophomore year. They will be done in early September and will be online within a week. Of course, if you want to disconnect, you can only go from 7: 00 to 23: 00 every morning and from Friday to Saturday to 23: 30.
As for the flash signal, you mean that we use the flash client to surf the Internet at school. Everyone has a flashing signal, 30 yuan for a month. You only have flashing signals, and it's no use if the network port of your bed number is not opened. You cannot connect to the Internet.
As for what building you said can get online, you mean the electronic reading room of the library and Qiushi North Building, which can get online for one yuan an hour. The computers in the library are almost as good as those in the north building. Open the door after 8 o'clock every morning and stay up until 9 o'clock in the evening.
Also, I majored in financial management. As far as I know, what the above two people said seems to be different from our college, which may be theirs. Freshman can take CET-4, without looking at computer level 2.