This blog is step-by-step guide to install HA VMM 2012R2. We will use VMs for VMM, but with physical servers it´s quite same steps. We will need two VMs with Win 2012R2 on same Hyper-V cluster that we can use shared vhdx disk for quorum.
Error message says that there are issues to create VM from WAP even if you would not connect VM to Virtual network.
(in tentant portal New-> Standalone Virtual Machine -> From gallery -> ).
Error messages are usually like these two examples: