The reason is that there are too many people using the health cloud now, which causes it to be stuck or even unable to open. The official has issued a notice, which is roughly as follows: Due to the large number of sampling personnel, the "Healthy Cloud" nucleic acid detection system once had problems such as large burst volume and difficulty in logging in. In order to ensure the stable operation of the system, we implemented current limiting measures, and gradually adjusted when the number of visits reached a certain value. After verification, the system fault is not a system fault, but a current limiting protection measure. This round of epidemic continued to ferment, and the number of nucleic acids increased sharply. The system can't carry it for the time being. The government has been trying to improve it. We can register personal information first, and the registration code can be saved in screenshots to prevent it from being opened at the scene.