If you followed the mentioned steps and still face the same issue, feel free to contact us under Contact
Our devices need the default server certificate to be able to access our server https://api.roomz.io.
If you have a ROOMZ-OnPremise server you can change the certificate to your own so that our devices can access the server (https://api.roomz.yourdomain).
If you need to rewrite the default certificate, you are able to download it under following link:
https://roomziodevops.blob.core.windows.net/public/roomz_root_ca.cer