I've set up CS under the same domain as superoffice web following this url:
https://community.superoffice.com/en/technical/documentation/install-upgrade/service/manual-steps-service/
The netserver runs under default website (http), while superoffice and service is set up under own site (https)
I only get the following error messages:

i've checked that .svc handlers are in place,
All IIS roles/features are installed