dhcp problem and view data

Please run the following on the CLI and share with me the output:

1. config system dhcp server

     edit 1

     get

    end

2. Identify the multiple IP for one device at DHCP monitor, then run

   get system arp | grep -IP address of the same iPhone-

    Example:

    get system arp | grep 192.168.0.1

    get system arp | grep 192.168.0.2

    get system arp | grep 192.168.0.3