So ever since I bought my PS4 new (slim model), after about a week it started acting up and disconnecting every little bit. It's very frustrating trying to play MWR while it does this.

I have tried both wireless and wired connections and both give me issues. (My router is right above my PS4). I have "hard reset" it and no luck. I even went out to buy a new Ethernet cable to try and fix the issue.

Any help would be greatly appreciated as in I want to fix it ASAP!

I bought the console 2nd hand (brand new) so replacing it is not an option.