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You need a network scanner. Like this one
https://play.google.com/store/apps/details?id=com.easymobile.lan.scanner
I'm assuming the camera is already installed on your WiFi. If you can unplug the camera. Run the scanner.
Take note of the names on your WiFi. Then plug in the camera and scan again. The new name will be your camera. The IP address will be listed with it.
Network Scanner still works.