Cyberghost vpn sometimes changes the dedicated IP address of

Cyberghost vpn sometimes changes the dedicated IP address of Serviio (home network). Servio is installed on windows 10. After that, the clients can no longer find the server. How can I prevent the permanently assigned ip from the home network from being changed by a VPN IP? Can someone help me ?
(Internet access is not necessary)
(Internet access is not necessary)