Login is banned by the Agora RTM server.
The connection between the SDK and the Agora RTM system is interrupted for more than four seconds.
The SDK fails to log in the Agora RTM system, because, for example, the token has expired.
The SDK has logged in the Agora RTM system.
The login has timed out, and the SDK stops logging in. The current login timeout is set as six seconds.
The SDK has logged out of the Agora RTM system.
Another instance has logged in the Agora RTM system with the same uid.
Reasons for a connection state change.