In my web8 machine I am using SDL Language cloud as a TMS. I have registered and generated the API key Here
When I try to put the API key in the translation source configuration I see this error - Unable to load translation management system configuration options. The remote server returned an error: (403) Forbidden. I don't see any error in TranslationManager logs. I am also putting my public/Private IP in the allowed IP at the time of generating Key.
Is there any configuration I am missing?