105 front derailleurs set up procedures are going to differ depending on the year model. 5700 and earlier are pretty simple. I'm assuming since you have a Domane ALR 5, your 105 derailleur is going to be a later model 5800 or 5801. These 2 have a much different setup and adjustment process, as well as a different trim function as well. I've made videos on both types that may be helpful to you. The most common issues I see with incorrect setup is not enough cable tension and not installing the back up plate and utilizing the stabilizer screw.