Error: connect ECONNREFUSED ::1:8000 when using custom hosts

I have a request that used to work a while back using postman, but not anymore (I have not changed any settings). The same request works in google chrome.
In postman, the request:
GET {{apiHost}}
where apiHost is an environment scope variable
Resolves to:

curl --location 'web-api.somedomain.local:8000'

And the response is
Error: connect ECONNREFUSED ::1:8000
In chrome, the same URL:
web-api.somedomain.local:8000, gets a response OK