How To Solve My Suduko My Stand Alone COMPUTER Will Not Connect To The Internet Although My Wireless Laptop Will Any Reasons Why?

My stand alone COMPUTER will not connect to the internet although my wireless laptop will any reasons why? - how to solve my suduko

Suddenly, the computer is not my main occupation HOUSE to the Internet (Google once a connection had problems with before) and had a virus. Wireless laptop works, but my ideas someone resolved this problem?