Api key not provided

We installed RhinoCompute on Azure following the procedure indicated.
As you can see from the attached image we can run RhinoCompute from the VM and obviously also Rhino8.
When we try to make a call http://20.33..:80/healthcheck
it always returns the error Api Key not Provided and error 401 Unauthorized.
As Andy Payne suggested, trying with Postman and inserting the API Key directly in the call always gives the same error.
We verified that in the VM environment variables, the RhinoCompute API Key is actually those inserted.
It may be necessary to set some access options directly in the Azure ports interface, but we have not found any indications in any post on Discourse.
Unfortunately, we have not found adequate solutions with other users who have had the same problem.
Thanks for the support!
Sergio