2 xboxs with sky router and open nats

[bigjonnyauk]

hi guys got a sky router and me and kids have a wireless xbox each

thing is only one of them seem to have an open nat really want to get them both open

i have enabled upnp but thats about all i know router wise lol

 

[bigjonnyauk]

how do i do that mate ? i can get into the router and stuff im great with computers and the building side of it but i never really got into the networking side lol

 

[bigjonnyauk]

have got nothing port forwarded cuz i aint sure how to do it anyone help us out here