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Personally owned computers which will be connected to Carleton's wired or wireless networks must be registered by the owner.

Registration provides for a more secure network and ensures that only Carleton community members are granted access to various secure network resources. But it's not just about keeping people out. It also helps us to more quickly and accurately troubleshoot network issues. For example, our automated systems may detect unusual traffic from a particular computer, suggesting that it has been infected or otherwise compromised by malware. Using our registration records we can identify the owner and reach out to help in order to resolve the problem.

The registration process only takes a few minutes, and is outlined below.

If you have any questions on the following information, please call the ITS HelpDesk at 507-222-5999 or send email to:


Registering a Wired Connection (Ethernet)

Why Use Ethernet Ports?

While the convenience of wireless is appealing, a physical cable will always provide a faster. It is also generally more reliable as cables are not susceptible to the interference that can degrade wireless signals. If your computer will sit in a fixed location when it's in your dorm room, we recommend that you take advantage of the physical connection.

See our network access page for more information on using ethernet, ethernet ports, and how to get an ethernet cable.

The first couple of steps below assume that you are reading these instructions from a device other than the one you are trying to register. Note, however, that this page is accessible before registering your computer on the residential network.

  1. Ensure that your computers is connected to an active port via an ethernet cable
    AND ensure that your wireless adapter is turned off or otherwise disabled. 
  2. Open up your preferred web browser.
  3. If you are not automatically redirected to the Network Registration page, enter the following web page:
  4. Below the heading "Ethernet ports & devices that can't do eduroam", enter your Carleton username and password (to register the computer under your account):
  5. Click Login.
  6. It will take a few moments for the registration process to complete:
  7. Once the process is complete, your browser page should reload.
  8. Check your connection by trying to visit a non-Carleton web site. If you are redirected to the Network Registration page again, please restart your computer (to force it to refresh the network connection).


Registering on Wireless

There are two wireless networks on campus: one for use by students, faculty and staff, the other for use by guests to our campus.

Our full-featured and secure wireless network for use by community members is called eduroam. The exact method for registering your computer on eduroam varies according to the type of computer, operating system, etc. For that reason, please refer to the article Eduroam Wireless Setup.


Troubleshooting Ethernet Connections

If you are having problems connecting via Ethernet cable, there are a number of possible reasons. Take a look at the following possible causes to see if you can determine the source of the problem.

No Registration Page

The most common starting sign that there may be a connection problem is if the Network Registration page does not appear when you launch your web browser. But before we get too deep into configuration settings, there are a few things to try first.

  • Try reloading the page; sometimes web browsers get a little pokey.
  • Manually point your browser to the registration page at (some browsers don't like the redirect).
  • Try a different web browser.
  • Try clearing you web browser's cache (for help, see How to Clear Browser Cache).
  • Try the tech support favorite and restart the computer. This is often most helpful if the computer is normally put to sleep when not in use, as opposed to being shut down.

If none of these first steps make any difference, it's time to go a little deeper.


Check the Ethernet Port and Cable

There is always the possibility of a physical problem, either in the form of a bad cable or ethernet port.

The easiest test for a bad cable is to try a different cable. If you don't have a second cable in your room (e.g. room mate's connection), you can stop by the ITS Helpdesk in the CMC to pick one up.

Alternatively, it is possible that you're plugged in to a port that is not active. Not all ethernet ports on campus are active; in dorms the policy is to activate one port for every person living in a room. Sometimes, the most accessible port may not be the active port if, for example, the furniture layout in the room has changed. There may be other causes as well, such as degraded cabling or accidental deactivation during network maintenance. The easiest way to check if the problem is with the port is to try connecting your machine to a known good port (e.g. your room mate's). If that is not an option, however, the next option is to check the IP Address that your computer is pulling. We can actually tell quite a bit from this simple number, but first you have to find it.



  1. Press the Windows Key + R together to open the Run window.
  2. Enter "cmd" in the Open field, then click OK. A command prompt window will appear.
  3. Enter the command "ipconfig" then press Enter. A lot of information will appear.
  4. Look for the IP v4 address under the heading "Ethernet adapter Local Area Connection" and compare it with the table below.

Mac OS

  1. Click on the Apple icon in the top-left corner of the screen.
  2. Select System Preferences.
  3. Select Network.
  4. Select Ethernet on the left side of the window.
  5. Look for the IP address on the right side of the window, and compare it with the table below.

Translating the IP Address

IP AddressWhat it means...
137.22.n.nYour computer is successfully registered on Carleton's network. Try restarting the machine to see if your connection comes to life, otherwise please contact the ITS Helpdesk at x5999.
10.22.n.nYour computer is connected to and recognized by the Carleton network, but is not yet registered. If you have already tried the steps under "No Registration Page" above, please contact the ITS Helpdesk at x5999.
10.0.n.nYour computer is manually configured for a home network, most likely an Apple router. Please see "Network Settings on Computer" below for the next steps.
192.168.n.nYour computer is manually configured for a home network, most likely a Linksys or Netgear router. Please see "Network Settings on Computer" below for the next steps.
169.n.n.nYour computer is not detecting any network connection. This is either an inactive port or, perhaps, an bad ethernet cable. Please contact the ITS Helpdesk at x5999.


Network Settings on Computer

If your computer is configured for a specific network e.g. a home network, certain settings may not be compatible with the Carleton network. The following steps should help you determine and, if necessary, change those settings.


  1. Press the Windows Key and search for "Network connections".
  2. Select View Network Connections in the results.
  3. Right-click on Local Area Connection and select Properties.
    You may be prompted for your local administrator account credentials.
  4. Select Internet Protocol Version 4 and click Properties.
  5. If any information on this window has been entered manually, the computer may have problems connecting to Carleton's network. Ensure that the following options are selected:
    - Obtain an IP address automatically.
    - Obtain DNS server address automatically
  6. Click OK.
  7. Click  Close.
  8. If you made changes, you should check your connection again. If there is no change, try restarting your computer and check again.

Mac OS

  1. Click on the Apple icon in the top-left corner of the screen.
  2. Select System Preferences.
  3. Select Network.
  4. Select Ethernet on the left side of the window.
  5. Click on the Advanced button.
  6. Click on the TCP/IP tab.
  7. The Configure IPv4 field should be set to "Using DHCP".
    If this field is set to anything else e.g. "Manually", click on the pulldown to change it to "Using DHCP".
  8. Click on Renew DHCP Lease.
  9. The IPv4 Address should change to either 137.22.n.n. (registered) or 10.22.n.n. (unregistered).
    If not, you may have to restart the machine (see step 12) 
  10. Click OK.
  11. Click Apply.
  12. If your computer is not showing a valid IP address as noted in step 9 above, please restart it and check again.


Registration Page

"IP Addresses" from Wikipedia