Auto-discovery can sometimes fail to find a camera. This can be for a number of reasons:
The IP camera and the encoder do not have compatible IP addresses
Check that they are on the same subnet, but do not have the same IP address
IP cameras are also mini-computers that can take time to boot up (often several minutes)
Allow the camera time to boot up before the auto-discovery process – or reboot if it has crashed
The IP camera may not be a supported device
Review the camera model against the IP Series Camera Compatibility List
The firmware on the IP camera may be out of date and causing an issue
Check the version of firmware that is installed on your IP camera and update if required
If the encoder is still unable to find the IP camera automatically, try adding the camera manually. Use the Add camera manually menu option and enter its IP address/login details manually.