This study aims to determine the quality of internet network services provided by PT Eka Mas Republik to the customers and determine which attributes need to be prioritized for improvement or repair. This study uses the Kano diagram method by distributing functional and dysfunctional questionnaires to 100 customers of PT Eka Mas Republik. The results show that the service quality of PT Eka Mas Republik is currently not optimal, based on the Kano diagram method, each indicator has a different service category, there are 18 attributes in category M (Must Be), 6 attributes in category A (Attractive), and 3 attributes in category O (One-Dimensional).