MCPE doesn't accept a refused CONNECTION

When an external server refuses the connection,MCPE keeps on trying to connect to the server.

NOTE:

I can press CANCEL, but is MCPE that should STOP pinging and not waiting for CONNECTION_TIMEOUT.

PS: to be CLEAR: I don't expect anyone to repeat it.(not this issue and not the other issues reported by me)

Steps to Reproduce:
1. Connect to an external server with a MCPE version diff from yours
2.Wait for MSG from server(obsolete server/client)
Observed Results:
MCPE  keeps on sending CONNECT_PINGS to the server which ignores all the pings because he already answered.
Expected Results:
MCPE should return to MAIN GUI,instead of waiting for CONNECTION_TIMEOUT.