0000-0000 ID FFFF-FFFF any help? XBOX 360 ethernet/internet problem

W 0000-0000
X 8000-001D
Y 0000-0000
Z 0000-0000
ID FFFF-FFFF

internet on my pc works
i have a xbox wireless network adapter too and that doesnt work
i can't use the ethernet cable to connect to my PC either


and iv used different ethernet cables too

any help??