N10-005 · Question #813
A technician is troubleshooting a network camera. The technician restarted the modem and now the camera is no longer available from a mobile device. Which of the following has MOST likely occurred?
The correct answer is A. The public IP address of the network has changed. When accessing a network camera remotely from a mobile device, the mobile app or user connects to the camera using the network's public IP address (the IP assigned to the modem/router by the ISP). Most residential and small business ISP connections use dynamic IP addressing…
Question
A technician is troubleshooting a network camera. The technician restarted the modem and now the camera is no longer available from a mobile device. Which of the following has MOST likely occurred?
Options
- AThe public IP address of the network has changed.
- BThe camera has received a new firmware update.
- CThe camera's secure shell has been disabled.
- DThe router has changed the IP of the mobile device.
How the community answered
(17 responses)- A82% (14)
- B6% (1)
- C12% (2)
Explanation
When accessing a network camera remotely from a mobile device, the mobile app or user connects to the camera using the network's public IP address (the IP assigned to the modem/router by the ISP). Most residential and small business ISP connections use dynamic IP addressing - each time the modem reconnects, it may receive a different public IP from the ISP. Restarting the modem triggers a new DHCP lease from the ISP, which often results in a new public IP. The mobile device then tries to connect to the old (now incorrect) IP address and fails. A firmware update (B) is unrelated to a modem restart. SSH being disabled (C) would affect a specific access method, not general remote availability. The router changing the mobile device's IP (D) is irrelevant since the mobile device is on an external network.
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