So I just upgraded to gigabit internet and I have an msi h170a gaming pro mb which supports 1 gbps http:// However my ethernet will only run at 100 Mbps and when I change it to 1 Gbps in the Link speed my internet won't connect. Why can't I run 1 Gbps? I have verizon fios and I have the fios gateway and I am using cat5e cable to my desktop.