Comcast UPNP Routers - XFinity

For Comcast UPNP Routers, relating to XFinity-Comcast internet question. My question is:Are there any type of routers for Comcast that support UPNP?
I plan on hosting a server for a specific game and requires that I UPNP it, yet my Arris SURFBoard SB6141 does not allow UPNP.

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