I can't access kvstore via curl from within splunk cloud - but it is working from powershell and postman?

[donelliot]

I'm not sure what I've done - 

Getting an error when trying to use the webtools curl add on which I'm not getting from postman or powershell

"https://<myhost>.splunkcloud.com:8089/services/server/introspection/kvstore/serverstatus"

HTTPSConnectionPool(host='<myhost>.splunkcloud.com', port=8089): Max retries exceeded with url: /services/server/introspection/kvstore/serverstatus (Caused by NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x7fb7520b0990>: Failed to establish a new connection: [Errno 110] Connection timed out'))

Any internal settings from within splunk web likely to have that effect ?