Xbox Live & Verizon Fios

That's odd. As far as I knew most ethernet-slotted connections ran 1500/1492. I think a majority of IPv6 units produce like 1300+. Have you called Verizon to see if they gave you a newer unsupported modem?

 

I had that problem when i had FIOS. That Actiontec router is problem. You are going to have to ego into router settings and open up they required ports.
I got rid of my Actiontec router 3 days after I had it FIOS installed.

 

I'm not sure what the FiOS rules & regulations are but are you actually required to use the router that they give you?

 

If you are just an Internet if customer no, sub to TV and you can bridge the routers

 

i'm not sure what fios modem/router I have but xbl works fine