Network registration method and apparatus, and user equipment

A User Equipment (UE), comprising a processor;

• and a memory having a computer program or an instruction stored thereon, wherein the computer program or the instruction, when executed by the processor, causes the processor to perform a network registration method, comprising:
• when a registration message is failed to be sent to a first network device through a first connection, sending a first request message to a second network device, wherein the first request message is used to request the second network device to send a network address of a target network device;
• receiving a first response message, wherein the first response message is a response message that is sent by the second network device in response to the first request message;
• and
• when the first response message comprises the network address of the target network device, sending the registration message to the target network device corresponding to the network address through the first connection.

A non-transitory computer-readable storage medium storing a computer program or an instruction that, when executed by a processor, causes the processor to perform a network registration method, comprising:

• when a registration message is failed to be sent to a first network device through a first connection, sending a first request message to a second network device, wherein the first request message is used to request the second network device to send a network address of a target network device;
• receiving a first response message, wherein the first response message is a response message that is sent by the second network device in response to the first request message;
• and
• when the first response message comprises the network address of the target network device, sending the registration message to the target network device corresponding to the network address through the first connection.