@pe1chi. thanks so much for your reply, but I just moved my answer to a new Post because this is marked as Solved.
Here is the URL: http://forum.mikrotik.com/t/pppoe-connection-was-already-active-closing-previous-one/153566/1
@pe1chi. thanks so much for your reply, but I just moved my answer to a new Post because this is marked as Solved.
Here is the URL: http://forum.mikrotik.com/t/pppoe-connection-was-already-active-closing-previous-one/153566/1