Hi, I have seen here few threads discussing the QTP commuter license feature.
We had some serious problem: we checked out 30 days commuter license to be used on machine that does not have network connection. when 30 passed it turned out that the license server didn't check in the license so we left with one license 'down'.
HP support do not have practical suggestions for how to solve the problem (right now we are in a middle of argue with them).
They admitted that this feature is 'fragile'.