I’ve said it before, and I’ll say it again… You can beam yourself back after you left Starship Enterprise. Okay, I’m not talking about Captain Kirk here, but rather users who disconnected from their offices and left for some sunny location to “work” and subsequently converted their licenses to standalone. Now that they’re back to reality and need to be back onto network seats, a quick and easy change in the registry will fix do the trick!
NOTE: The value ACAD-xxxx may change depending on your AutoCAD vertical. The example above is for AutoCAD Civil 3D 2013.