Router Exceptions for Xbox Series X

If you just connect them, the dhcp server will assign a ip to each of them, in the admin panel,  https://10.0.0.1  it will list the connected devices along with their associated MAC address, you can also set a reserved ip if that's what they mean

Hey @BruceSelzler. We do appreciate you taking the time to make this post! We want you to be able to enjoy the awesome new gaming experience provided by the Xbox Series X with our network. Can you tell me a little bit more about what issues you are currently running into when you try to connect your Xbox to the internet? Are all of devices you're trying to connection a Series X, or are some of them older Xbox versions? We want to ensure we help provide you with the best steps to get this corrected.

This has been a issue since the console was released. If you have a Comcast/xfinity modem/router port forward will not do you any good. The software update to their routers/modems will not communicate with the series x correctly. The only two fixes are wired connection which is not 100% and new modem: router that will hopefully read  

I have an XBox One X on WiFi, an XBox Series X on Ethernet , and I'm using a Comcast XB7 gateway - and they're all working just fine for online play. 

If you don't have UPnP enabled on your router, you'll have to use port forwarding. These articles might help:

Set Up Port Forwarding on Your Xfinity Gateway - Xfinity Support
Network ports used by Xbox Live on Xbox One | Xbox Support

Sounds familiar.

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