Press 'Home' on your remote
Select 'Settings'
Select 'Network'
Select 'Set up connection'
Select 'Wireless'
Select 'UTC' (Do NOT use the "UTC Secure" network. It will not work)
Locate the MAC Address (sometimes called Wi-Fi Address, Physical Address, or Internet Address). It is always 12 characters long and can contain numbers from 0-9 and letters A-F. It is most commonly in the Settings or Network Settings menu. It will look something like: A1:B2:34:56:C7:D8
Select 'Yes' if you are a UTC student, faculty, staff, or affiliate
Select 'Media Player'
Under the 'MAC address' field, enter the device's MAC address
Under the 'UTC ID' field, enter your UTC ID
Under the 'Password' field, enter your UTC password
Select the device type from the dropdown box
Select 'Submit'
Source Link: https://support.roku.com/article/360010968833-how-do-i-find-the-serial-number-or-device-id-for-my-roku-streaming-player-