Does the subject want to ask "Why 10 1 can't log in for the exam preparation"? Incorrect account or password input, network problem.

1. Incorrect account number or password input: check whether the entered account number and password are correct and whether the case is correct. Incorrect account number and password will cause 10 1 to be unable to log in for reference.

2. Network problem: Unstable or slow network connection will lead to login failure. You can try switching networks or refreshing the page.