Xbox is connected to wireless network but can't connect to Xbox Live

This Xbox 360 has been connected to Xbox Live since Christmas, but today it can't connect to Xbox Live. We went through the troubleshooting. Nothing is working. Any ideas on how to fix this?

What Country/State/Province do you live in? USA/Ohio
Modem brand & model number: **** DG860
Router brand & model number: **** DG860
If Wireless, are you using a white or black external adapter, or an internal (Xbox 360S) adapter? Xbox 360 internal
Things you have tried: 
Is UPnP Enabled? Yes/no/Unknown Unknown
Do you have a NAT error? If so, what is your NAT type? No NAT error.
Any Error Codes you encounter: 80151909
Who is your ISP(Internet Service Provider)? Buckeye Cablesystem
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.)
X: 0000-F001
Y: 0C88-1C40
L: 0015-10F1
Q: 8007-0435


Question Info

Last updated July 4, 2018 Views 6 Applies to: