You can get the Roku activation code by accessing the Roku account that you have already. If so you don’t have one, make sure to create one. And you need to check whether the Roku streaming device and the computer are connected to the same network to get the Roku activation code. Get the code, access the Roku.com/link and enter it. The Roku device gets linked to the Roku account and then proceed with adding the channels. Contact support team @ +1-844-893-6700.