In both cases below you need to do WiFi setting on Lonsdor K518ISE Key Programmer:
First time use you need to configure WiFi to register and update
Device displays WiFi connection but cannot run an upgrade
Lonsdor K518ISE WiFi setting:
Tick Show advanced options
Set IP settings to Static
DNS 1 before setting
DNS 1 after setting.
Lonsdor Key Programmer k518 wifi setting is done.