A user reports being unable to access the Internet. The help desk technician employs a bottom-up approach to troubleshooting. The technician first has the user check the patch cable connection from the PC to the wall, and then has the user verify that the NIC has a green link light. What will the technician have the user do next?
- Enter an IP address into the WWW browser address bar to see if DNS is at fault.
- Connect to the user home router to check firewall settings for blocked TCP ports.
- Use traceroute to identify the device along the path to the ISP that may be at fault.
- Verify the IP address, subnet, and gateway settings using ipconfig on the PC .