Xfinity just sent me an email stating that my Arris SBG8300 modem will not deliver 1.2 Gbps which is the speed provided by their network. My speed check comes to 868.5 Mbps and I am CAt6 hard wired to the modem approximatly 20 feet away.
Can anyone on this form collaborate this info? And if so, does Arris have any suggestions to remedy this problem? Software upgrade?