Modem/router all in one or Seperate?

[Subidoo]

My Internet service provider Cable One has stated multiple times that for my gaming the SBG6580 is way faster and better than a modem and router seperate. Does anyone else have a different opinion?

 

[kapitalistas]

My Internet service provider Cable One has stated multiple times that for my gaming the SBG6580 is way faster and better than a modem and router seperate. Does anyone else have a different opinion?

who you trust then.