Temporarily disable "Microsoft Defender SmartScreen" under Privacy, search, and services to see if it’s blocking the PDF. Mozilla Firefox

Open a private/incognito window. If the download works there, one of your browser extensions is likely blocking the file. Common Causes of PDF Download Failures 1. Browser Extension Interference

Go to Settings > Privacy and security > Clear browsing data . Select "Cached images and files" and hit "Clear data."

If your browser is set to preview the PDF before downloading, the built-in viewer might be crashing.

Few things are more frustrating than waiting for a critical document only to be met with a vague "Network Error" message. This error usually occurs when the communication between your browser and the server hosting the PDF is interrupted. The good news is that the file itself is rarely the problem; it’s almost always a settings or connectivity glitch on your end.

Sometimes Edge struggles if the destination folder has restricted permissions. Go to Settings > Downloads and change the "Location" to your Desktop.