Xfinity blocking VPN

I just moved and had to get Comcast Xfinity service. They gave me a Arris Interactive, L.L.C. tg862g. Everything works fine, except I need VPN access for work. When I connect to my work's VPN all the sites no longer load stating unable to access network in Chrome.

At my previous residence I had Time Warner and had no issue with VPN, but now when I switched to Comcast I'm no longer able to connect to my work's VPN. Is there a setting in the gateway to fix this and allow VPN access. I'm looking at 10.0.0.1, but am not seeing anything dealing with VPN access.

Solution 1:

The Comcast provided modem was the issue. I got my own and the issue was fixed.