Xbox360 connects to network but not to live

My Xbox360 will NOT connect to my home network this week, it has never had any trouble doing so in the past. The box has no problem connecting to either of my AT&T wireless network cards that I use when I am away from the house, but every time I try to connect
to my home internet it fails between network and xbox live.

I have reset the modem, router, xbox network settings, reset the settings to default, opened ports 53, 3074, 80, 88, as well as put the xbox in the DMZ of my router. I have tried wired connection, even wired connection directly to my PoE modem. All attempts
fail, i have an Asus N66T DDWRT router, PoE wireless DSL internet.

Any other day I would think that the network hardware in my box is failing, but it flawlessly connects to any OTHER network than my home network that it has never had trouble connecting to before, is it possible that my ISP is somehow blocking the box somehow,
or it is timing out, please someone give me another idea this is maddening!

The error status report is the same every time.

W: 0000 - 0021

X: 0000 - F001

Y: 30A8 - 4840

Z: 0000 - 0000

ID 0006 - 0000

L: 8015 - 1004

Q: 8015 - 1004

T: Wireless

A: 192.168.1.36/255.255.255.0

G: 192.168.1.1

D: 192.168.1.1, 0.0.0.0

N: Sword Base

S: WPA2

C: 6

:)

 

XBOX 360 connects fine to network (both wifi and ethernet) but NOT TO INTERNET. error 80151909

still waiting for Microsoft to explain to me why I can't connect to Live with a WORKING Xbox360, able to connect to a WORKING WIFI network, but NOT to the internet.

Very, very, very frustrated by Microsoft.

 

ad-hoc to stream video, without router or internetconnection?

I have set up an ad hoc network on my laptop sharing out my internet connection and it works well with other laptops etc. When I try to connect my xbox360 to it, it will see the network and connect but then it will not connect to the internet and xbox live
when asked to do so.

Have you gotten closer to a solution?