Orthanc Port (65432) might be used by Hyper V
For Documentation Purpose:
When creating the development environment on Windows, an error regarding the port 65432 might occur. This port, used by Orthanc, is reserved for Hyper V usage.
netsh int ipv4 add excludedportrange protocol=tcp startport=65432 numberofports=1
Command above frees the port 65432 and will survive a host reboot.