Or, your folder may be on a removable drive without a good connection. One reason Chrome fails to download your file and displays a 'Failed - network error' message is that you don't have permission to save your file in your chosen folder. Related: Why Does Rebooting a Computer Fix So Many Problems? Save Your File in a Different Folder or Drive
When your computer reboots, launch Chrome and try to download your file.
To reboot your Mac, in your machine's top-left corner, click the Apple logo and choose 'Restart.'
