Have x2 gigabit service. Cannot get over 150mbps.

I upgraded to the x2 gigabit service a few months ago. I have the XB8 gateway and I was given a new gateway to pickup when i upgraded my plan. I assumed it was the newer XB10 gateway but it was just the same XB8 gateway again.

My speeds are around 150mbs download and 100mbs upload when I was at the 600 plan speed as well as the x2 gigabit. The speed didnt change at all.

Now I am reading XB10 gateways around rolling out for the X plans. How can I upgrade to it?