Xbox game streaming crashes on connecting (Xbox console companion)

First off, Smartglass is no longer supported. You have the Xbox Console Companion, and the Xbox app on PC. To stream to your PC, you will first need to turn on game streaming in Devices & connections Remote features in the Settings. Once you have done
that, start the Xbox console companion, then make sure you are on the same network as the Xbox, sign in with the same Xbox account that is on the console, and select the connection icon on the left of the app, and then select the console that is connected,
and select stream. You should now be streaming your console to your PC.

Hello JoeMantz,

Thank you for your post. I understand you are looking to connect your Xbox One to the Xbox Companion app. To set this up, please follow the steps here:

Game Streaming with Xbox Console Companion App.

I hope this helps.

Are you using the Xbox Console Companion on your PC trying to stream from Xbox or the Xbox Game Streaming (Preview)?

Try going to Device connections on your Xbox and make sure Xbox is able to connect.

Also check Allow Play To streaming and Allow game streaming to other devices.

System > Devices & streaming > Device connections

You need to stream your console to your laptop (Has to have Windows 10) with The Xbox Console Companion app. Start the Xbox One, then start the Console companion app, then select the connect icon on the left side of the app, and your console should show,
just select it, and select stream, that will then stream your console to your laptop.

This may help

https://beta.support.xbox.com/help/games-apps/apps-help/how-to-use-game-streaming-in-xbox-console-companion-app

To use Xbox game streaming, you must first enable game streaming from your Xbox One. To do this, press the
Xbox button  to open the guide, select
System > Settings > Preferences
> Xbox app connectivity. Do these two things:

1. Under This Xbox, select
   Allow game streaming to other devices.
2. Under Other devices, select
   Allow connections from any device or Only from profiles signed in on this Xbox.
   

Connect your Windows 10 PC to your Xbox One

After ensuring that your console settings are correct, you need to establish a connection from your Windows 10 PC to your Xbox One console from within the Xbox Console Companion app on your PC:

1. On your PC, launch the Xbox Console Companion app.
2. Select Connection from the panel on the left side.
3. The Xbox Console Companion app will scan your home network for available Xbox One consoles. Select the name of the console you want to connect to.

The xbox is set up perfectly, the xbox even appears in the add device area of the Connection panel, it just will not connect and the message "We couldn't connect to your console. Make sure the console is still on and connected
to the same network as this device." appears