Thank you tubaman for pointing out my silly mistake.....I have used 192.168.1.1 to try and flash the HG612 but after it goes through the process and even hours later once it is restarted there is no response to ping to 192.168.1.1 or any gui access via the browser. Hence, I thought maybe I have the wrong file for the firmware.
I would appreciate it if you or anyone else can let me have the correct firmware file and the disappearance of the GUI after the firmware being flashed is that something to be expected as I thought it would actually provide one.
Thanks