xbox live keeps disconnecting?

Ok here is the issue.
ill play black ops or netflix or something for a little while but then it boots me saying that "disconnected from xbox live"
i get this every 20ish minutes.
I restarted my comcast modem and my wireless router. I tested emy xbox live connection and everything is good.
I have run it without any issues like.. a week ago but just started having issues.
I have a comcast router hooked up to a wireless router a netgear rangemax wireless N Router.
But my xbox is on a cable into my wireless router.
I have tried restarting it, switching which ethernet port its connected to.. nothing works.
any help please would be appreciated?


also: when i click "y" status on the test xbox live connection after I have run a test it says "error status report"
w:0000- 000b
x:0000 - f001
y:20a8 - 4840
z:0000 - 0000
id:ffff - ffff