How do I locate the mac address

connect your PC to monitor(use same IP-range and subnet), run CMD write arp -a press enter

C:\Users\yourself>arp -a

Interface: 10.142.110.33 --- 0x15

  Internet Address      Physical Address      Type

  10.142.108.1              00-00-0c-07-ac-1e     dynamic

  224.0.0.22                01-00-5e-00-00-16     static

  224.0.0.251               01-00-5e-00-00-fb     static

  224.0.0.252               01-00-5e-00-00-fc     static

  239.255.255.250       01-00-5e-7f-ff-fa         static

  255.255.255.255        ff-ff-ff-ff-ff-ff                static

C:\Users\yourself>

Monitor Setup > Install/Service (password 16-4-34) > Service (password 26-23-8) > SW Management > License

In the license submenu, you will find the MAC Address