Frontier WF-803FT Firmware change?

I recently purchased 3 of these adapters and they work great but the problem is I need to set it to FULL for 3 devices to work together and to get the full speeds of the adapter. When you do this you can no longer use Encryption on the devices. Some of the threads on this forum have states this is a rebrand of another device that goCoax makes and distributes directly to market. So I have two questions - What is the model of the device that this is a rebrand of (with the changes specific to Frontier)? - Can we update the firmware with the goCoax version to get this device to work under industry standards again? If the answer to my firmware question is yes, is their a link to download it and if so do you know what it is? Thank you