Hi. I recently acquired a Bosch Universal (not Plus) mixer. It is in almost pristine condition. I got it because I have recently been diagnosed with a disc herniation and can no longer make our bread and bagels by hand. 

I have to say I am not impressed. The bowl doesn't seem to lock in place and the dough hook didn't even mix my bagel dough much less knead it. The whole unit (bowl and hook)seemed to just twirl around at the same speed and sort of push the ingredients around the bowl. 

Has anyone else had this experience, and know what I may be doing wrong?