Why does QVPN Service not support PPTP if the QuTScloud instance is hosted on certain cloud platforms?
QVPN Service does not support PPTP if the QuTScloud instance is hosted on Microsoft Azure, Google Cloud, or Catalyst Cloud because these cloud platforms do not support Generic Routing Encapsulation (GRE) protocol that is required to encapsulate point-to-point network links.
Refer to the following cloud platform FAQs for more information:
Microsoft Azure
https://docs.microsoft.com/en-us/azure/virtual-network/virtual-networks-faq