#FroznMinei saw that, the second answer links to mongodb's jira. there it's said, that it may mix up the users, because new ones will be of that old type
#FroznMinebut i'm going to try it out now, if there is no other common practice to solve this
#FroznMinemy connection decided to drop, strange...
#FroznMineanyway: I tried what they said and at least I now have no authentication to make a special request, so he correctly authorizes me
#FroznMinewithout authentication it works/starts working. i may have to think about that...
#FroznMineSome tweaking around with the settings and it now also works with authentication. Thanks for convincing me of 'downgrading' MongoDB's schema!