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Network Registration

In order to connect to the Student Computing Network, all computers must be registered by connecting the computer to the network, opening a web browser, and entering a user name and password when redirected to the Registration Page. Operating system updates and anti-virus software may be required, in which case they will be available from that page. A student, faculty, or staff user name and password is normally required.

The registration page is https://registrar.res.carleton.edu

Contents

• Purpose
• Multiple registrations
• Trouble-shooting Checklist
• Advanced Troubleshooting
• Deregistration
• Common misunderstandings

Purpose

Requiring registration before computers can connect to the Carleton network has several advantages in terms of network security and bandwidth preservation. First, it prevents unauthorized use of Carleton's bandwidth by limiting its use to students, faculty, and staff. Second, it reduces the spread of malware, which can potentially use a huge amount of bandwidth. If a particular computer is draining bandwidth, it can be de-registered from the network. If this happens, an e-mail will be sent to the user who registered the computer. De-registration can also occur if a computer is used for large quantities of file-sharing.

Multiple registrations

At a technical level, registration relies on the unique network address, or MAC address, of the hardware. As a side-effect of this, a computer must be registered separately for each network device it uses. In other words, a computer with both Ethernet and wireless capabilities must register both the first time Ethernet is used and the first time wireless is used. Occassionally, changes to the registration server will require that all computers be re-registered.

Recent changes to the registration server require that computers be registered separately for different locations on campus.

Trouble-shooting Checklist

The most common issue in trying to access the network (and therefore the internet) is that the registration page fails to appear. Here is a trouble-shooting checklist:

1. Make sure that the port the computer is connected to (if using Ethernet) has a star next to it, indicating that it has been activated. There should be a blinking light in the Ethernet port of the computer when the cable is securely attached and the computer is turned on.
2. Check the IP address.
3. If a proxy is turned on, either in the operating system or the browser, turn it off.
4. Clear the web browser's cache and go to carleton.edu.

If this fails to bring up the registration page, bring the computer to the SCIC. This type of problem can typically be fixed within a day.

If a registration fails to take effect, check your IP address and call the SCIC.

Advanced Troubleshooting

Here are some advanced troubleshooting techniques if the above doesn't work:

Try resetting the TCP/IP Stack (Winsock protocols, etc.).

Under Windows XP:

1. Do so by opening a command prompt (Start->Run->"cmd")
2. Type the following command (sans quotes): "netsh int ip reset resetlog.txt" .
3. If that command doesn't work, another command that is supposed to work under XP SP2 (but is currently untested by the SCIC) is: "netsh reset winsock catalog" .

Under Windows 2000:

1. In Control Panel, double-click Network Connections, right-click "Local Area Connections" and then click "Properties."
2. Under "This component uses the following items," click "Internet Protocol (TCP/IP)," and then click "Uninstall."
3. Follow the instructions on the screen to remove TCP/IP.
4. Restart your computer, but click "No" if you are promtped to let Windows enable a protocol.
5. In Control Panel, double-click "Network Connections," right-click "Local Area Connection," and then click "Properties."
6. Click "Install."
7. In the "Select Network Component Type" dialog box, click "Protocol," and then click "Add."
8. Under "Network Protocol," click "Internet Protocol (TCP/IP)," and then click "OK."
9. When the protocol is installed, click "Close."
10. Restart your computer.

Deregistration

If your computer is registered for [[StudentComputingNetwork][Student Computing Network], it can still be deregistered for a variety of reasons, including:

• A virus or worm is detected on your computer. You will be deregistered in order to prevent the virus from spreading over the network.

• Your computer is believed to be involved with illegal file-sharing on the network. You will be deregistered in accordance with federal copyright law.

If any of the above happen, you will receive an e-mail informing you of the reason for being deregistered and the process you will have to go through in order to re-register. It is also possible that you may be arbitrarily deregistered due to a registration server issue. All computers are deregistered during regular registration server maintenance, usually once per term.

Common misunderstandings

Student Computing Network registration should not be confused with the computing questionnaire which is given to new students. This questionnaire is only used for statistical purposes, such as determining the relative popularity of PCs and Macs. Students who acquire a new computer after coming to Carleton do not have to fill out the questionnaire.