Hi, I'm having a  problem with my ac adapter.

When I accidentally pull out the AC adapter from my laptop, it shuts down automatically without any other software or hardware problem. Later I find out that my AC adapter is fine and working (no damage and bents is seen and tested out), but it is loosely plug into the power jet of the jack of my laptop. Although the cable won't fallout from the jack when I moving the laptop, I feel less resistance to pull out the cable than when I first purchase it.

Does that means the pins on the port are bent or broken the power board or system board may need to be replaced? My laptop is a Inspiron 5558 with warranty.