i just installed 2012LT. yesterday i exported the license successfully and was able to install on my office computer with the utility.
at the end of the day, i exported it successfully.
this morning at home, when i click the utility the hourglass comes up for a few seconds and thats it.
when i try to start autocad, it gets to the "checking License" and the shuts down with no error code...just disappears.
i have restarted, uninstalled and reinstalled, but nothing works.