If there is no connection to the internet while being connected to a charging station/LAN, it is not possible for the Alfen ACE Service Installer or other app to download updated settings files or new firmware files.
Furthermore, it is also not possible to automatically update the license key of a charger. 
When using WiFi to connect to the internet, it must be possible to connect to WiFi as well as the wired network to the charging station at the same time.

In this case, please check:

• Is there a LAN/WLAN switching service activated on the laptop?
  Please turn this service off in the laptop via the Windows Task Manager.
  These settings differ per laptop. Unable to change or find the settings? Please, contact your IT administrator.
   
• If the WiFi network adapter is set to disable itself when a wired connection is established, please turn this off.
  These settings differ per laptop. Unable to change or find the settings? Please contact your IT administrator.

 
If the above is not workable, use a workaround for obtaining new firmware and settings files from Alfen's update server.
Please, disconnect from the charging station, create a WiFi hotspot with a mobile phone, open the ACE Service Installer and accept all updates when asked.
When all files are downloaded through the open connection from a WiFi hotspot, connect to the charging station again.

The laptop will be offline, but the required update files are saved on the laptop. 
Updating the license key with the Update license key button is not possible via this workaround. 
Entering the license key code can be done manually.