I have the R3 setup as a second router to my Xfinity XB8 router/modem. The R3 is set up lan (from 2.5G switch) to Wan (R3). I have two network cards on my pc. Both are active at the same time...one is 10g (pc to switch) and the other is 2.5g (pc to R3). I have 2.5g download 350 upload service from my isp. I understand that the R3 is 1g max...but no matter what I do, I can't get the R3 over 700+ download. Do you think having the R3 as a second router would cause this? I get the same results no matter if I have one card or both network cards active. 700+ is a great speed...but I should be hitting 800/900+ easy. Other than the speed issue, this router is doing everything else perfectly.