Greetings, @Edu84.
Thanks for reaching out to us about having an error message on your doorbell. We're here to help.
Have you tried rebooting your Roku Smart Home Doorbell and your wireless network to resolve the issue you are experiencing? Additionally, how far is the doorbell from your wireless router?
Please keep us posted.
Thanks,
Roku Community Team
Reynan L.
Roku Community Moderator