1. Wrong user name or password. Please make sure that the user name and password you entered are correct. Pay attention to case and spaces. If you forget your password, you can try to reset it through the "Find Password" function.
2. Network connection problem. Please check whether your network connection is normal. You can reconnect to the network or change the network environment to log in.
3. System maintenance or upgrade. Lansgefei Internet is undergoing system maintenance or upgrade and will not be able to log in. Please be patient and try to log in later.