The maximum length of a network cable for a TP-Link surveillance camera is determined by the Ethernet standard, which specifies a maximum cable length of 100 meters (approximately 328 feet). Exceeding this maximum length can lead to signal degradation, data loss, and unreliable network connectivity. Therefore, it is crucial to adhere to this limitation to ensure optimal performance of the surveillance camera system. Extending the cable length beyond 100 meters may require the use of signal boosters, repeaters, or Ethernet switches to maintain a stable network connection. It is recommended to consult with a professional network installer to determine the most appropriate solution for extending the network cable length for a TP-Link surveillance camera.