|Acrolinx Plug-in for Oxygen||Version 3 or later|
|Oxygen XML Editor||Version 14 or later|
When you try to upgrade the plug-in through the Acrolinx update site, the download fails.
This issue might be caused by your antivirus software, especially when the antivirus software checks URLs.
Resolving the Problem
Temporarily disable your antivirus software or add the URL of the Acrolinx update site to the list of exceptions of the URL checker to allow the download and upgrade the plug-in.