The never ending checking for update.

Hey there!

Nice to meet you! I'm Darhyl, a fellow gamer. I'm sorry you are experiencing this. I am here to help.

It seems you have exhausted all the troubleshooting steps yet the issue still persists. In this case, that might be the only best option.

I have resolved a similar issue before, the gamer had decided to reformat the C: Drive where the Windows was installed then proceeds to download the Xbox app, and then game downloads worked normally.

Kindly do the same however before you proceed with your reformat, make sure to back up your files.

Hello there @Manbearpig64568, I hope everything is going well!

Thank you for reaching Microsoft Xbox Forum support. I want you not to worry about the situation because I am here to help you out! I believe your console might need either a network reset or just a system refresh. I would like you to go through the following steps to clear the Mac address and then perform a quick power cycle on your console:

Settings > Network Settings > Advanced Settings > Alternate Mac Address > Clear it and the console should restart. It would definitely help if you could restart the internet router while the console is restarting.

After going through the troubleshooting steps mentioned, I invite you to perform a quick power cycle by turning off the console and then unplugging all the cables. After 2 to 3 minutes, re-plug them back again, then restart your console.

Another thing you should check is your NAT type. I would like you to check your NAT type if open because that could sometimes interfere. to check for the NAT type you can follow the steps below:

Settings > Network Settings > NAT type => It should be open.

If the NAT type is not open, you will need to open some ports with your internet provider. 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).

In case the issue still persists after the previous steps have been performed here is the official link to all the network troubleshooting steps that can help sort this out for you.

The link: Troubleshoot your Xbox One network connection | Xbox Support

I wish you a lovely day, and I hope this helps you out! All the best!

Kind Regards

Stay safe, and happy gaming!

For some reason this happens sometimes and I believe it has something to do with either your connection, the servers, or your connection to the servers.

Try performing a hard reset EXACTLY like this. Hold the power button on the console for 8 seconds or until the power shuts down completely.
Unplug the power cord from the back of the console for 5 minutes.
Plug the power cord back in and restart the console.

I just let Fortnite update in 100% for 3 hours to play it yesterday