Need Help network error

I renewed my 12 month XBL and i downloaded few demos, that was few days ago. On Friday i turned on my xbox and tried connecting to XBL and it gave me a newtwork failed error message. I have turned off my router more than 30 times, i have also reseted it with the button on the back. I have replaced the ethernet cable. however nothing seems to work. Any help would be appreciated.

anyone?

really no one?

ughh it looks like something is wrong with XBOX everything else works perfectly fine. It worked perfectly fine 2 days ago havent tried playing it since then and now it wont even sign into xbl. it signs into the profile but will never go past network step in testing stage. plus i dont know what other information i can give you, none of the settings are filled out. even though they are under automatic.

even after i input my dns adress, ip adress, subnet mask and gateway manually still the same problem. SO any help is greatly appreciated