Yes, but hard-wired, not wifi. Directly wired security cameras will continue to transmit and save video to the NVR or connected PC. Without internet, an IP camera system can’t be remotely seen or stored in the cloud. Security Cameras recommends a wired connection over wifi. As noted in a previous piece regarding Ring cameras, wireless cameras have many vulnerabilities that may compromise a security camera system. Later, we’ll explain how the typical IP camera setup adds security. IP cameras may capture video internally while wireless, but for a short period.