Input error, remote login, account lock, database failure. According to the query, the pipe network of University of Science and Technology Beijing shows that.

1, input error. The user name or password entered may be incorrect, such as inconsistent case or misspelling.

2. Log in elsewhere. You have logged in to other devices or networks with the same user name and password, and you may be prompted that the user name or password is wrong when registering for the single move.

3. The account is locked. If you enter the wrong user name or password many times, your account may be locked by the system, so you need to wait for a while and then try to log in again.

4. The database failed. There may be technical problems such as database failure in the single-recruit registration website, which makes it impossible to log in normally. You need to wait for the maintenance to complete, and then try logging in again.