A vScope license is bound one single machine where vScope is intended to run. One of the parameters in determining a unique machine ID is mac addresses. On some platforms, there are situations where mac addresses change, e.g. when there is no network connectivity or network setting have changed (like adding or removing a connection). This can cause vScope to signal “Wrong License” even though there is an accurate license available. If you have this problem, please contact firstname.lastname@example.org for help.