Francine changed Internet service providers and just set up the equipment in the home. She is calling you because she is unable to connect to the Internet from her iMac (Late 2013). You probe further to find out that her roommate is able to connect to the Internet using a PC and Francine is able to connect using he iPad 2.

Which of the following troubleshooting tools or techniques would you recommend to Francine to help her further diagnose the networking issue with the iMac?