You generated the request on one machine but tried to activate on another, or your hardware changed (e.g., new network card). Fix: Regenerate the request file on the exact target machine . Offline licenses are now hardware-bound.

Assume you have a (node-locked or floating). Here is the latest procedure.

Once you have the .lic file on a USB drive or local storage:

Katalon Studio Free version does support offline activation. Currently, offline activation is a premium feature exclusive to paid Katalon Studio Enterprise (KSE) annual subscriptions. Katalon Community Key Feature Limitations for Free Users Online Mandate