Please provide an example of nrf9160 connecting to a public tcp server to me

[peter.min]

1. Please provide an example of nrf9160 connecting to a public tcp server to me
2. Public server address: www.tongxinmao.com/.../1

[peter.min]

1. In China, none of the routines shown in the test figure can be connected to the server.
2. Please provide a routine that can connect to the server or guide me through similar routines.
3. I have a public tcp server here that may be used for verification. http://www.tongxinmao.com/App/Detail/id/1