Description: When starting the LANCOM Advanced VPN Client for macOS X following an update to the operating system, the error message “Open logfile failed” sometimes occurs because the write permissions for the log file are missing or the folder NCP no longer exists. This document describes the steps to take to prevent the error message Open logfile failed from occurring.
Procedure: 1) In macOS X, click on the Finder. 2) In the Finder, switch to the menu Go |