How to bind mac id to ISP

Not fully convinced I understand your question - guess you want to use the new router using the WAN/Internet adapter MAC address, because some ISP bind the ISP has locked the CPE to a single MAC address.  

This is not possible with the Nighthawk app - login using a web browser to the R8000.

NETGEAR Nighthawk X6 AC3200 Tri-Band WiFi Router Model R8000 User Manual p.23 "Manually Set Up the Internet Connection", then p.24

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10. Select a Router MAC Address radio button:
• Use Default Address. Use the default MAC address.
• Use Computer MAC Address. The router captures and uses the MAC address of the
computer that you are now using. You must use the one computer that the ISP allows.
• Use This MAC Address. Enter the MAC address that you want to use.

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