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.
How are you powering the Roku device? Is the device powered by the TV USB port or is it plugged into a wall outlet?
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 finish updating and setting up your Roku device. Then once your device has been setup, try switching back to your home wireless network.