Using xbox 360 trying to logon to live when trying to connect says update nessicary to sign into live, attempt to download update get error code 3151-0000-0080-0300-8007-2751: Cant download update, to test connection in network settings. Network connection is ok.

Error C800-0036 occurs when downloading an update to your Xbox 360 console. This may mean that there's a lock on your Xbox Live account. If your Xbox 360 console has been tampered with or modified, it can no longer connect to Xbox Live, install software updates or play new games that require a console software update.

Try to clear your system of the most recent patch:
"Solution 6: Delete and then re-download system updates
To delete and then re-download the system updates, follow these steps.
Note These steps delete system updates that are installed on your Xbox console.

1. Press the Guide button and then select Xbox Home.
2. Select settings and then System.
3. Select Storage.
4. Highlight your storage device (but do not press A to select it).
5. Press the following buttons in the following order:
   1. Left bumper
   2. Right bumper
   3. X button
   4. Left bumper
   5. Right bumper
   6. X button
6. On the Delete System Update screen, select Yes.
7. After your Xbox console restarts, select OK to download and install the system update.
8. After the system update is installed, re-download your Xbox Live profile and try to sign in to Xbox Live."

You may also be out of hard drive space if you're using a 4gb internal model Xbox 360. If you haven't already, find yourself a compatible USB thumb drive to insert, format and use as added memory.

Xbox.com has a handy search page to lookup error codes:
http://support.xbox.com/en-US/error-code-lookup

From that page, those is the answer and resolution they give, good luck:
" Error C000-000E occurs when you try to download an update to your Xbox 360 console
Problem
You see the following error when you try to download an update to your Xbox 360 console:
error code xxxx-xxxx-xxxx-xxxx-C000-000E
Update failed.
Note In this error code, the "x" digits vary.
This error message means your console could not download a software update from Xbox Live.
Solutions
To resolve this problem, try the following solutions:
Solution 1: Try installing the update again.
Solution 2: If you're having problems connecting or staying connected to Xbox Live, see Troubleshoot your Xbox Live connection.
Note You can also update your console software by copying the update to a USB flash drive or a disc and then applying it to the console. "

When you do this try plugging it in to an ethernet cable

Check the connection to live in network connection settings. You not on track for a ban are you?

Try signing in to your live account on a pc via xbox.com

Your xbox is getting interrupted while download your update through xbox live. try updating your console manually by going to www.xbox.com/support and download the latest update file, use a USB to finish the update.

Thanks

www.1RepairStop.com

Try going into your network connections and doing a test connection. It should log you out do the test succesfully and then attempt to redo the update. It should ask you to update again and just accept the update by pressing the A button.

Hopefully it should update your system without the error this time? Good luck.

Hi Stephen!

When your Xbox 360 signs you into Xbox Live, it automatically attempts to sign you into Live Messenger, as they use the same communications systems since Microsoft bought MSN.

To resolve this error message popping up every time you sign in:

1. Sign into Xbox Live,
2. In the Xbox Dashboard, scroll over to your Gamer profile,
3. Find the "Auto Sign-In" tab,
4. Under "Windows Live Messenger", check "Disable".

Hope this helps!

If your Xbox 360 console is connected to the Internet through a router or gateway (as opposed to through a direct modem connection), try connecting the console directly to the modem. Here's how:

1. Plug one end of a network cable into the back of your Xbox 360 console and the other end into your modem.
2. On the console, sign in to Xbox LIVE and start the game.
3. Choose to download the game update.

If you can download game updates when the Xbox 360 console is connected directly to the modem, there might be a problem with your router or gateway configuration.

Cheers!!

u tried updating the firmware