Help getting started with Roku devices, including setup, connecting your device to your TV, linking a Roku device to your account at my.roku.com/link, adding channels, subscribing to services, and more.
Can you please clarify the issue you are experiencing?
After your factory reset (making sure to press and hold down the reset button for at least 30 seconds regardless what is happening on the screen), are you not presented with either an activation link, or with a prompt requesting your email address to be sent an activation link?
With more information we will be able to assist you further.
We recommend rebooting both your wireless router and your Roku device.
I'd also recommend trying to connect your device to an alternate network, such as a mobile hotspot, to see if you can retrieve an activation code and finish setting up your Roku device. Then once your device has been setup, try switching back to your home wireless network.