unfurtunately there are several different things that can cause it, losing your place in queues can simply be the connection refreshing when you are on secondary, secondary doesn't normally cause connection problems. On a primary connection its not uncommon for connection crashes to occour, these normally occour on modems connected through USB or on some NAT routers though.
when this is happening, check if your connection goes down completely or if its just winmx - both on primary and secondary, as i said it could be the 2 unrelated things