1. If you know the ip of the poe camera, you do not have to download this tool to search its ip. If you do not know, then you have to download this tool to your pc, which is  in the same network as your camera, Install the DeviceManage on your pc and search ip of the camera.  
2. Download OpenTelnet  to your pc: run it on pc and input the ip of the camera and then click on Open Telnet 
3. Download ResetACTool to your pc, run the reset tool on pc 

 you will get 2 safety codes: send to us  

we will send you the password after we get your safety code  

enter the ip of the ipc to the device ip,  

then tick the box of IPC and click on Reset Config.