In both cases below you need to do WiFi setting on Lonsdor K518ISE key programmer:
1.First time use you need to configure WiFi to register and update
2.Device displays WiFi connection but cannot run an upgrade
Lonsdor K518ISE WiFi setting:
Tick Show advanced options
Set IP settings to Static
Change DNS 1 to 220.127.116.11
DNS 1 before setting
DNS 1 after setting.
Lonsdor K518ISE wifi setting is done.