Hi,
Thanks for getting back to us.
We recommend rebooting both your wireless router and your Roku device. Alternately, I'd also recommend trying to connect your device to an alternate network or mobile hotspot. If you are able to connect without issue, this usually indicates an issue with your network or password. In that case, you might also try changing your network password to see if that resolves the connection issue.
Try taking a look here for more tips about troubleshooting that network error code:
https://support.roku.com/article/208755728-what-should-i-do-if-i-cannot-connect-to-my-home-network-o...Keep us posted with what you find out.
Thanks,
Danny
Danny R.
Roku Forum Moderator