How to fix update not downloading?

This didn’t solve the issue

Hi, Mason! It's my pleasure to assist you with this today.

Kindly try to do these steps and check if it will fix the issue. Thanks!

Let's try to enable the QoS tagging on this console.

Please go to Settings and select General > Network settings > Advanced settings > QoS tagging settings

Enable both the DSCP and WMM tagging

Reboot the console

Then press and hold the Power button on the front of your Xbox until the console turns off.

Unplug everything from the back of your Xbox.

Wait 3 minutes, and then plug the power cord and HDMI back in.

Then, please check if that fixes the issue. Thank you!

Have you tried to reset the console this way?

IMPORTANT: Make sure to remember the email and password for the account before taking these steps.

Press the Xbox button to open the guide.

Select Profile & system > Settings > System > Console info > Reset console.

Select "Reset and keep my games & apps

Is the console itself fully updated? If not been on for a year I would imagine the xbox has several updates to do first?

If your system hasn't been used in a year or so, I would say that it is possible that there could be dust buildup causing issues with the fan. Have you checked out the vents on the sides of your system to see if they need to be cleaned out?