I have internet but I can`t connect to anything

So I have this problem with my computer that I can`t connect to anything. It happend out of nowhere and everything was working just fine b4 it happend. I use an ethernet cable in my pc and it says its connected but I can`t use any browsers or get online at skype/steam. Simply put I can`t acces the internet. I first thought it might be a problem in my router or my cable might be broken so I used the cable that I use for my pc, and I placed it into my laptop. Everything worked perfect with my laptop so no problems their. So the only option I had left was that something was wrong in my pc.
I`m using windows 8. I`ve been searching for the solution to fix this problem for 5 days now but nothing as worked. If anyone could help me that would be very apreciated.

(sorry for my bad English)