Network problems. It is the unstable service network of Suzhou safety education platform that causes some users to access slowly or even fail to open it. Suzhou, referred to as "Su" for short, was called Gusu and Pingjiang in ancient times. It is a prefecture-level city under the jurisdiction of Jiangsu Province, a Class I metropolis, an important city in Shanghai metropolitan area and Suzhou-Wuxi-Changzhou metropolitan area.