If it is a network problem, you can choose another network to upload again. If it is a server problem, you can stagger the peak period and upload it when the network congestion is not serious.

When the network faces too much traffic, congestion will occur. If the network is compared to expressway, and the traffic volume ratio is compared to the traffic volume, network bandwidth and other resources and the ability to store and process data are limited, it will also cause network congestion when there is sudden traffic.