Disconnected constantly from games, but remain connected to Xbox Live

Have you done port fort forwarding on your router?

This is from Microsoft:

https://support.xbox.com/help/Hardware-Network/connect-network/network-ports-used-xbox-live

Network ports used by Xbox Live on Xbox One

A network port lets your Xbox One console communicate with the Xbox Live servers and other Xbox One consoles over the internet.
To let your Xbox One console communicate with Xbox Live, you might need to open or forward ports, which means you'll be making a configuration change to your firewall or network hardware, such as a router. Port forwarding for Xbox One is done on
your router or other network hardware, not on the Xbox console itself.

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Ports required to use Xbox Live

These ports must be open for Xbox Live to work:

• Port 88 (UDP)
• Port 3074 (UDP and TCP)
• Port 53 (UDP and TCP)
• Port 80 (TCP)
• Port 500 (UDP)
• Port 3544 (UDP)
• Port 4500 (UDP)

Note Some game developers require you to open additional ports. You should always check the game developer's website to see if the game you're playing needs additional ports to work.

You can also find information about opening ports on your router at the Port Forward website. This website lists commonly used ports for various apps and games, but if your
router isn't listed or you need more help, contact your internet service provider or router manufacturer.

If you're connected to a network through your workplace or school, ask the network administrator to open these ports.

If you receive a NAT warning when you connect to Xbox Live, see the Xbox One Multiplayer Game Solution.

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How to set up port forwarding

To get information about how to configure your compatible network hardware, go to the Networking
Hardware Information forums. Here you'll find information about your specific router, modem, or gateway, and how to connect it to your Xbox One console.

Note Microsoft provides third-party contact information to help you find technical support. This contact information may change without notice. Microsoft does not guarantee the accuracy of this third-party contact information. Microsoft
disclaims any and all liability arising out of your use of the third-party companies, software, solutions, services, and training listed on the site. All software, solutions, services, and training are provided "as is" and without warranty unless provided
by the authoring third-party company.

I get disconnected while playing games about 75% of the time. I'm constantly getting disconnected and reconnected to Xbox live parties. I usually stay connected to Xbox live just disconnected to the games.

If I'm at the dashboard I will still be disconnected to my Xbox live party but usually it automatically connects back.

"It usually happens when you're playing a Games on Demand game and you disconnect from Xbox LIVE. I'm talking from personal experience because that always happens when I disconnect." -

www.horizonmb.com/.../39994-Disconnected-from-Xbox-Live-10-Minutes-remaining

Same issue here.. When my xbox does connect to xbl i am constantly getting disconnected from live.

I have the same issue, completed all troubleshooting steps, teredo is connected, internet is fine FH4 constantly disconnects horizon live sessions. Unplayable rubbish, won't buy any more games from Microsoft.