Hyper-V provisioning not working

[omega1]

Hi all,

I'm trying to automate the provisioning of Hyper-V VM's, I've followed this page https://docs.whmcs.com/HyperVM and have created (I think) the necessary on my panel, but when I try and create a VM nothing is provisioned. I feel that I am missing something. Do I need to add anything to the Hyper-V host to 'receive' the provisioning request from WHCMS (other than opening port 8888)? 

Things I have done:

- Allowed port 8888 on the Hyper-V host.
- Created the host in the 'Servers' section.
- If I click on the 'Hyper-V' button within the 'Servers' page of my WHCMS it tries to go to this address : http://x.x.x.x:8888/htmllib/phplib/ 
- If I click the 'Create' button in the 'Module Commands' section, it eventually gives me a 'Module Command Success Service Created Successfully' message.

I cannot find anything meaningful in logs.

Is there any more documentation anywhere on this or can anyone offer any feedback/suggestions on how to troubleshoot further or what I might need to check?

Many thanks in advance.