Are you kneading for too long?
Kneading bread in a KitchenAid stand mixer for two minutes is equivalent to kneading by hand for 10-12 minutes, due to the effective planetary action of the mixer, making it necessary to adapt your favorite recipe to the times and speeds suggested in the Owner's Manual.
When the dough climbs up the hook, that is typically an indication that the kneading is complete. A sticky dough will tend to climb the dough hook and even climb over the collar of the dough hook. Dough that contains eggs tends to be stickier and climb the hook more easily. Most specialty grains, but especially rye flour, form a sticky dough and will climb the hook more than white flour dough.
Are you using the right speed?
Speed 2 is the only speed that should be used for kneading.
- Adding a little more flour (1Tbsp. at a time) will help the dough not to climb the hook as much.
- It is important to realize, however, that some dough will have a stickier consistency and not try to overcompensate with additional flour because it will make the bread too dry.