It appears to be possible for one computer to borrow 2 licences
One while connected to the LAN.
A second while connected via VPN.
Sequence for which this event occurred
Borrow licence at work while connected to the LAN
Went home and found that couldn't open Inventor due to no licence (odd - since it had just been borrowed.)
Connected to VPN, was able to open Inventor and also borrow second licence.
Initially we thought the first license may not have borrowed correctly, but the log file & license count said otherwise.
To fix this we had to go back to work and release the LAN borrowed licence, then went back home to borrow a VPN connected licence.
I know that the borrowed license is bound to the user profile used to borrow it - and the same profile should be used to return it, but the method of connection to the license manager should not cause the behaviour described above should it? In the case above the same windows user prodile was used.
The borrowed license is connected to the network adapter and the username. So if you were connected via the NIC and borrowed, then connected at home via WiFi, then that is your issue. Likewise, if you use a different login name in either location, that is your issue.