How to set up PPTP over Avira Phantom VPN (or others)?

Question

VPN

Hey! There is a task: when a client connects (for the purpose of anonymization) via Avira Phantom VPN, the connection to a remote ZyXEL router via PPTP using Windows does not work (in order to access resources of a remote local network). Is there any experience of solving such a configuration? PPTP on the client was configured both using a remote gateway to access the Internet, and without. Please help!