Well I seem to be having the same connection issues a lot are having. My connection drops after about 10 mins or so. If I try to play a game it will stay connected longer but the game will get very very laggy. If I watch netflix it kicks me from Xbox Live then resigns me in when I get on the dashboard just to kick me again 10 mins later on the dashboard. I have the Xbox 360 slim with a DSL connection, the router is bridged, also the connection to the 360 is wired.
I went through all my routers settings, have updated the firmware. Put all the setting to Dlink said to, did port forwarding first, then DMZ. Disabled the firewall, the 360's mac address is on the DHCP Reservation list. All that hasn't worked.
I used the unofficial guide to bridge my modem, and all my setting match what I had to do with the past attempts. That didn't work.
Un-bridged my modem connected it directly and it worked fine but I leave it this way due to having a house full of devices that use the internet..
Just to add redid all my settings, used netflix on my wireless TV and wireless laptop and it works fine.
Clear the cache, used the connection guide.
What Country/State/Province do you live in? US, KS
Modem brand & model number: zyxel eq-660r F1
Router brand & model number: Dlink dir-645
If Wireless, are you using a white or black external adapter, or an internal (Xbox 360S) adapter? Wired
Things you have tried: Listed above
Is UPnP Enabled? have tried both
Do you have a NAT error? If so, what is your NAT? No NAT error
Any Error Codes you encounter: No error codes
Who is your ISP(Internet Service Provider)? Century Link
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.)
When it doesn't connect
When it does connect
L:8015-1911 or 8015-100C
Also tried to download my profile again and got this error 80070525
Everything works but the Xbox, even my PS3