I have noted that LexFloatClient returns LF_E_INET (0x02) error code when calling LexFloatClient.RequestLicense() and the license has been expired on the license server. This is unexpected behavior as the error code should indicate a network related problem, which is not the case. I would expect to get LF_FAIL (0x01) error code in this case.
You are right the error code LF_E_INET is not appropriate in this case. We will fix the behaviour and make it more consistent in the upcoming versions.