Wired Internet not Working

My Wireless Internet is working fine on everything else in my home but my computer is wired and when I try to get on a browser it says modem/router or sometimes no Internet connection is not found but on the desktop it says i'm connected I need help to fix it.BTW it is a ASUS Windows 8

Sorry, can you try that again?
 
Is the problem with a wired connection

but my computer is wired

 
or a wireless problem.
 
What is the complete model number?

Click on Start then Run or press Window key (next to left Ctrl key) +R and paste the following into the Run box, exactly as shown, including double quotes:

cmd /c "ipconfig /all > postme.txt & ping yahoo.com >> postme.txt & notepad postme.txt & del postme.txt"

and press ENTER.

A file will open in Notepad. Please copy and paste the contents here.

Close the Notepad window and the file will be deleted and the Command Prompt window will also close.

 

If you don't have a Run selection off the Start menu, see here: Enable Run Command on Windows 7 or Vista Start Menu, or How to access the 'Run' box in Windows® 8.1 - YouTube or just press Windows Key (next to the left Ctrl key) + R, or open the Modern desktop, type run then click on Run that appears.

Also Check if your CAT5 cable (ethernet) is working. Same thing happened to me, ended up being a faulty cable.