Ok I have the same problem multiple people on this forum have. My 360 disconnects from live all the time. It's worst when sitting on the dash, I'm lucky if it lasts 2 minutes. On video streaming stuff i get maybe 10-20 but it can be as low as 5 minutes if it feels like it. Half the time I can reconnect straight away and half the time i get every error under the sun within the space of 2 minutes.
It's been like this for 2-3 weeks now and it's getting ridiculous. NOTHING changed on my setup and it has worked almost perfectly for nearly 5 years with this equipment.
Here's the info requested in the sticky:
What Country/State/Province do you live in? UK
Modem brand & model number: N/A
Router brand & model number: Bufallo WBMRG-54 ADSL Modem/Router
If Wireless, are you using a white or black external adapter, or an internal (Xbox 360S) adapter? Using WIRED
Things you have tried: Resetting Router/Xbox and every combination of that. Unplugging and replugging wires. Static IP. Port Forwarding
Is UPnP Enabled? Yes/no/Unknown - Right now, yes, but have tried both and neither make any difference.
Do you have a NAT error? If so, what is your NAT? No Error, NAT is Open
Any Error Codes you encounter: Whatever the 360 feels like at the time. Have had MTU/IP/Internet/DNS errors in the space of 5 minutes of testing connection, making me think the hardware or network isn't actually the problem.
Who is your ISP(Internet Service Provider)? BT
After you run "Test Xbox LIVE connection" press “Y” for "More Info”. In the pop-up that appears, what are the following values, if shown? (If a value below does not appear for you, just leave it blank.)
I'd just like to say again that this exact setup worked perfectly until about 3 weeks ago and no changes were made. Other internet enabled stuff (1 PC WIred and 2 Netbooks) have no problems whatsoever.
Appreciate any help, thanks.