CIS Home > Networking > Troubleshooting Network Connections

Troubleshooting Network Connections

Do it yourself IP addresses

Computers must be registered in NetReg to use WHOInet. You do not need to request a registration - you do it yourself! Once registered, a computer can obtain its network (IP) settings automatically using DHCP (Dynamic Host Configuration Protocol). IP settings include IP address, subnet mask (netmask), gateway or router address, and DNS servers. Without these settings, a computer is not on the IP network and cannot access Web pages, email, etc. Even before a computer is registered, it uses DHCP to access the NetReg registration page.

In nearly all cases, a computer will get its IP settings without fail. However, if a computer is unable to use the network, the first thing to check is its IP settings. Or, you can find your MAC address with an online tool

Start Troubleshooting

  1. If your machine is attempting to connect to our wired network, and it:

  3. If your machine is attempting to connect to our wireless network, maybe these wireless troubleshooting pages will help. And, we've put together a wireless troubleshooting flowchart (PDF) to help, too.

A picture is worth a thousand words...

You may find this wired troubleshooting flowchart (PDF) to be helpful.