Pixma Pro-1 - Ink levels using ethernet
i have your same setup and i can check the ink levels using ethernet. probably you did not setup the printer correctly. i had this same problem before. i deleted the printer in printer preferences and reinstalled it.
Fuji X-Pro1, 35mm f1.4,Grip, EF-X20, Canon 5D, 16-35L, 24-70L, 70-200 L/IS