To put a long story in short - I have memory overload issues with Oscam > build 7180.
I searched this forum a bit, and stumbled upon this post.
It seems that the problems that i have, might be related to cache-ex mode 3 and/or camd35 usage.
To find out the cause, i will do some extensive debugging the next few days.
=> This includes putting all cache-users offline, so your connections will go up and down once in a while.