Locking down the SEAS wired networks

In an effort to strengthen the security on our networks, we are planning to lock the SEAS wired networks starting on April 16, 2018.

What this means for you is the following –

If your computer connects to the network via a wired connection (Ethernet cable) when on campus, you will need to register your system so that it is authorized on the network. This should take 15 minutes or less. Please see the information below on how to complete this.

Step 1

You will need to know 1) your HUID, 2) HarvardKey password, and 3) the MAC address of your wired device.  

Please note that even if your computer is registered for wireless access, if you ever want to use its wired interface you will need it to be registered.

Note: If you use a dongle/adapter to connect your Ethernet cable, you will need to register the dongle/adapter’s MAC address, as your computer will not have a wired MAC address.

Instructions on how to obtain the MAC address from your wired interface or dongle/adapter can be found here:


If you have any questions about step 1 please send a message to seas-wired-networks@seas.harvard.edu.

Step 2

Once you have your 1) HUID, 2) HarvardKey password, and 3) MAC address, go to the following website to complete the registration -


The documentation linked below contains detailed steps on the above registration process.


Please note that even if your system was set-up by the SEAS/HUIT Support team, it is possible that the wired interface is not registered under your name and you will need to complete the registration.  

If someone had your computer before you and the wired interface is already registered, it is possible that you may get an error when trying to register.  If this occurs, please let us know at seas-wired-networks@seas.harvard.edu, so that we can update the information.

It is important that you complete this registration before April 16, 2018 so that your computer’s connection to the internet and services such as email are not interrupted.

If you have any questions please send a message to seas-wired-networks@seas.harvard.edu.

Thank you in advance for your assistance in helping to make a more secure computing environment at SEAS.