A location we service had new HP M806 printers installed. They then moved one printer to a different location in the office which caused a change in IP Address (They aren't set to a static IP AFAIK). Now no one can connect to it. The problem I am facing is that whoever set up the printers for them locked all the menus with a password (HP Future Firmware v3) and no one knows what it is. So I cannot simply print a Networking Info page and use that.
So what are my options? I can pull the formatter board and find the MAC address easy enough. Is there a way to find it on the network via MAC address to be able to connect to it? Or some other means to do it?