Internet Troubleshooting

Problem: The user on PC1 is unable to access an internet.

Network Troubleshooting tips:

1. Verify the link and cable with PC1 and the switch.

2. Verify that the configured IP address on PC1 is valid.

2. Test connectivity with PC2, issue  a ping

3. Test the connectivity with the router from PC1, which is the default gateway, issue a ping.

4. Ensure that the default gateway and DNS server IP address is configured on PC1.

5. Ensure that the DNS server IP address configured on PC1 is reachable. Issue a ping to the DNS server from PC1

6. Verify that the internet link of the router is up.

7. Ensure that the router has received a public IP address from the ISP.

8. Ensure that the default gateway IP address of the router is reachable from the router, Issue a ping from the router's console.

9. Verify NAT (Network address translation) configuration on the router.