Tried everything

This may _seem_ irrelevant, but please humor me: I'd start by clearing the system cache (it's just updates plus other temporary files, nothing that's at all important to anyone) by:

1) Tap the silver Xbox Guide button on the controller, go right 2 clicks to Settings, pick System Settings.

2) Select Storage (or Memory).

3) Move over any hard drive or memory unit (not the Cloud) & press (Y) on your controller & pick Clear System Cache.

4) When asked to confirm storage device maintenance, choose Yes.

5) Try again

Hello

I would suggest you to try out this fix:

1) Goto System Settings.

2) Select Storage.

3) On your Primary Storage Device Press the 'Y' Button.

4) Select 'Clear System Cache'

5) Wait for it to Clear...

6) Now attempt to Sign in.

7) You should stay signed in.

Here is one More Possible Fix:

1) Goto System Settings and Select 'Storage'.

2) Click the Storage device that Contains your Profile.

3) Goto your profile and press 'A'.

4) Click Delete Profile. It Will then ask 'Delete Profile Only' or 'Profile and Items'.

5) Select 'Delete Profile Only'

6) Once deleted press the Xbox Guide Button(Middle of Controller/ Big Green X)

7) Make sure you are signed out of all profiles and click 'Download Profile'

8) Enter all your Windows Live Credentials when It asks you too.

9) Wait for it to download

10) Once Downloaded you should be able to Sign-in to XBOX LIVE.

try this solution to get the network settigns back to its default state:

1)Turn off your Xbox 360 console.

2)Wireless connection only: Unplug the Xbox 360 Wireless Networking Adapter from the USB port (if applicable).

3)Turn on your console.

4)Press the Guide button on your controller, go to Settings, and then select System Settings.

5)Select Network Settings.

6)Select Wired Network or the name of your wireless network, if you are prompted to do so.

7)Select Configure Network.

8)On the Additional Settings tab, select Restore to Factory Defaults.

If all of those doesnt work i would suggest you to use this link to help you find a solution:

support.xbox.com/.../contact-us

Greetings, xbrendnx. Thanks for bringing us your questions. We'll get to the bottom of this! To start, I would not recommend using UPnP and port forwarding simultaneously. You can use one or the other but using both at the same time can cause connection
issues.



Secondly, it seems like you are encountering a DNS error. There are a few steps we can take to address this. To start, take a look at this support article titled "DNS
Error: Your DNS server can't resolve Xbox LIVE server names" and give the steps listed there a shot. Let me know if you need any guidance or have any further questions.



Keep us posted!

i tried what you said. then i power cycled, pretty much the same result. i tried it with my manual settings and i also tried automatic again. only difference in the status report is

ID: 0002-0001

L: 8015-0002

(i don't know if these actually mean anything)

It could be. Do you have another HDMI cable to test it out? Or have a friend with a console you can try your HDMI (the allegedly faulty one) on? It could also be the receiver. Try connecting the HDMI directly to the TV and see
if the lines still appear. If no then it is your receiver.