Upgrading to FileWave 13+ from older Versions on Systems where Port 443 is used Description FileWave 13 introduced a Web Admin interface.  By default this uses port 443.  Attempts to install on systems that have another service using this port will prevent the installation of FileWave. To resolve this, remove or adapt the contending process or FileWave to use a different port. Directions Configuring FileWave to use a different port before the upgrade may be archived as follows: Mac / Linux Edit the /usr/local/filewave/apache/conf/httpd.conf file as follows :  # Putting the last character in brackets is a trick to prevent Apache from issuing a warning if the file does not exist. IncludeOptional conf/httpd_webadmi[n].conf Create the /usr/local/filewave/apache/conf/httpd_webadmin.conf with the following content :  Define WEB_ADMIN_PORT 20440 Restart Apache Service  sudo fwcontrol apache restart Then Upgrade as normal by running the FileWave Server Installer 13+ Windows (Legacy) Windows  Edit the C:\Program Files (x86)\FileWave\apache\conf\httpd.conf file as follows :  # Putting the last character in brackets is a trick to prevent Apache from issuing a warning if the file does not exist. IncludeOptional "C:\Program Files (x86)\FileWave\apache\conf\httpd_webadmi[n].conf" Create the C:\Program Files (x86)\FileWave\apache\conf\httpd_webadmin.conf with the following content :  Define WEB_ADMIN_PORT 20440 Restart Apache Service in a cmd or powershell window run as Administrator :  fwcontrol apache restart Then Upgrade as normal by running the FileWave Server Installer 13+