Amazon Prime telling me i'm connected to a VPN

Used Prime on Wednesday with no problems, tried watching again on Thursday and when I try to play something it says I'm connected to a VPN or proxy service.

I am not.

I've restarted and refreshed my cable box as well as unplugging the power supply from the cable box for nearly 20 minutes. I've signed out and signed back into Prime and it's still telling me to disable VPN or proxy service.