Comcast Xfinity internet nat issue xbox one ports

Comcast does not support the xbox one ports i called them they connected to my pc witch was not necessary they charged me $150 for them opining the ports on the modem that is not accessible by anyone but Comcast support ... the nat was open for a short period of time until the modem reset from a power outage... is there any way to avoid paying another $150 ? i don't know but the only thing i can think of is Xbox/Microsoft gets in contact with comcast so they can have them open the oprts for the xbox one... the xbox one nat check tells me :   " your network is behind a port preserving port symmetric nat " when its the only thing hooked up to the modem and like i said  i can not access the modem to change the port settings only a Comcast support person can... if someone from xbox support can reply and help id be happy.


Question Info

Last updated July 4, 2018 Views 324 Applies to:

it was both the gateway and modem i fixed this issue with complaining and getting a new free modem and ended up with 2 new modems  

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