BTT PI connects to the internet only after first installation.

BTT PI connects to the internet only the first time after installing the OS.
After all configuration is done, if disconnected from the internet, it will not connect again.
Whether via WiFi or cable.
Does anyone have the solution?

Start by reproducing the connection failure on the BTT PI after the OS has been configured, testing both WiFi and cable as described. Compare behavior after the first installation with behavior after manually disconnecting and reconnecting; done means the device reconnects to the internet through both connection methods.

Written by the indexing model from the issue text.