Arris: My Xbox won't go online

I have had my xbox slim connected to Arris TG862 since August. I was connected online yesterday morning and had no problems. When I tried to get back on in the evening it suddenly could not connect. I can see the network but it just won't connect.

Guys, you can get a free gateway from Comcast that works. It's the Arris series. The TG862G and the TG852G Work fine! Just go and exchange it for an Arris or Cisco model. If you can't, the other option is to call Comcast and they will configure some settings
to help you stay online. The Arris models are working for people that have the Technicolor TC8305C.

the Arris dg1670 is your modem , the actiontec wcb3000n is a Wireless Network Extender , the arris should be the only one getting the internet signal from your isp , if the actiontec wcb3000n is also hooked to coax cable , its probably using a Moca connection
instead of Ethernet ....you could try plugging your xbox into the Arris instead of the Actiontec but the Arris gateways like you have from brighthouse have been the absolute worst ones to go down for some reason...if you plug into the arris and its still
a no go , I would call your isp and see if they will replace it , they should be aware of the issue...

Connection test works. It's connected fine. Then I go to multiplayer test and get an error "Can't get Teredo IP address"

Details as to my config.

Cable goes to Arris modem.

Arris modem is set to bridge mode.

Arris modem connected via ethernet to Apple airport extreme, which acts as wifi router for my house.

airport extreme ALSO has an ethernet cable connected directly to the xbox one.

But I'm still getting strict nat.

Plus the "can't get teredo IP" error.

Hi there. My name is Ron, I'm an independent advisor. I will be more than happy to help you.

Please try doing a quick power cycle to refresh the connection.

1. Turn off the Xbox console by pressing the Xbox button on the front of the console for about 10 seconds until it shuts down completely.

2. Unplug the console's power cable. Wait 10 seconds.

Important Be sure to wait 10 seconds. This step resets the power supply.

3. Plug the console power cable back in.

4, Press the Xbox button on your console to turn on the Xbox console.

Once it is back on, kindly check if the console is online.