Try to move from Simple Queues entirely to Queue Tree. Don’t use the same Queue Tree for all the incoming connections, it is not correct. To achieve packet queue control on each incoming link, you must have a good queue tree defined for each. Here’s some reading materials: http://forum.mikrotik.com/t/help-please-on-shaping/25634/4 http://forum.mikrotik.com/t/tree-queues-and-traffic-priority/25135/3
http://forum.mikrotik.com/viewtopic.php?f=13&t=29211&start=0
Keep us posted.
Regards.