Receiving half the bandwidth

Hello, I signed up for service a week ago after moving to town (Las Vegas) I signed up for the Premier internet with speeds up to 50mbs. Now I understand that, and I'm not expecting to be at 50 all the time, but since I got everything activated my speed as been at 26mbs consistently. I haven't seen speed over that all week at any time during the day or night. Paying for up to 50mbs I would expect to see at least in the 40s.

So I've spent the last week going over my whole home network and computers, checking all of my stuff to ensure I don't have something on my end causing trouble. My computer and other devices connected to my network are all the same ones I was using a week before switching and getting 40mbs just fine from my old provider.

The only change in hardware is that I now have the Netgear CG3000d  modem/router that you all provided.  I used to run with a Motorola modem and my own Dlink router.

Checking out the CG3000 I found that has a very simple user interface with basic options. Nothing in there I could find that would be limiting my bandwidth (that I could adjust at least)

I'm pretty savvy with networking so I'm down to 2 conclusions, 1. I am being limited upstream at 26,   2.There may be something off in the wiring in my building. I'm less concerned about the wiring though since my result doesn't fluctuate its been 26mbs every time I've run the test on multiple speed tests including the on here.

I read on some previous posts about similar issues and it seemed like there could be a hang up associated with the user account.

Let me know if there is anything else I missed, any help would be appreciated!