Hi @ar2r, It sounds like you have gone exhaustively through all the major steps such as BIOS and Chipset update, disabling firewall/antivirus, rolling back to restore point and even trying on another system. At this stage, I would recommend you contact Tobii Tech support directly who can determine the appropriate course of action such as replacing the unit.
You can reach them @ https://help.tobii.com/hc/en-us/requests/new