1, Browser problem: Users who don't use IE browser and turn off the pop-up blocking function will not log on to the platform.
2. There is something wrong with the IP: the user did not automatically obtain the IP address, resulting in an incorrect address and unable to log in. Users can click the wireless network connection icon in the lower right corner, select CMCC, and right-click the status to view the ipv4 address.
3. User account login error, forgot password: The user did not set a security question and could not find the account password himself. You can contact the class teacher to find and reset the password.