According to the public information about the inquiry, the reason for the failure of Guangdong medical insurance verification is that the system crashed due to the excessive network access, so it is impossible to check the Guangdong health code, and you can apply for re-verification or network change.
Zhongshan, known as Xiangshan in ancient times, is the hometown of Dr. Sun Yat-sen, a prefecture-level city under the jurisdiction of Guangdong Province, and a second-class big city. Located in the lower reaches of Xijiang River and Beijiang River in the south-central part of the Pearl River Delta, it is connected to Nansha District of Guangzhou and Shunde District of Foshan in the north.