1. ID card expired or invalid: ID card expired or invalid, and will not pass witness verification. It is recommended that the holder go to the local station to renew and renew his ID card.
2. Railway 12306 system problems: If the railway 12306 system fails or is maintained, the witness verification may fail. It is suggested to try again later or contact railway customer service for consultation.
3. Incorrect information: During the verification of the witness card, if the personal information filled in is inconsistent with the original ID card or filled in incorrectly, the verification may also fail. It is recommended to check your personal information carefully to ensure that it is filled in correctly.
4. Camera problem: When verifying witnesses, you need to take photos with a camera. If there is something wrong with the camera of the mobile phone, such as blur and insufficient light, the verification may also fail. It is recommended to check whether the camera of the mobile phone works normally and try to adjust the light angle.
5. Network problem: If the network is unstable or the network speed is too slow, the verification may fail. It is recommended to change the network environment or try again later.
If the verification of 12306 ID card fails, it is recommended to check whether the ID card is expired, whether the information filled in is correct and whether the webcam works normally. If the problem still exists, you can try to contact the railway customer service or go to the local station for consultation.