Some users are reporting that they receive a Something went wrong, Couldn’t download Windows 10, please check your network settings and try again message with error code 0x80072ee7, when they tried to upgrade their Windows 10 PC to Windows 10 Anniversary Update, using the Windows 10 Update Assistant Tool. If you to have faced this issue, here are a few things you could try.
Couldn’t download Windows 10, Error 0x80072ee7
Though you may have received the error while using the Upgrade Assistant, this error can typically arise when you are using Windows Update or updating your Windows Store apps too.
1] The first thing you want to do is to click on the Try again button. Chances are that the tool will be able to carry out the updating process successfully this time.
2] Make sure you are logged into your administrator account when you run the tool and disable your antivirus software before you begin.
3] If that does not help, clear the contents of the SoftwareDistribution folder and try again.
5] If you still face issues, run the Windows Update Troubleshooter.
6] There are some generic troubleshooting steps mentioned here in KB883821 for Microsoft Update. See if they apply to your scenario and operating system.
All the best.