There might be an external solution available for this task:
http://www.seh-technology.com/products/usb-device-servers/myutn-50a.html
We have had a test run here at work and it worked very well. The USB-eLicenser is available on the network and you can “take it” to be able to work on your system. It is not possible to use the same USB-eLicenser simultaneously on different systems though.
Also note that this is not an official recommendation because we haven’t done any official tests so far.
Regarding the USB-eLicenser dicussion in general, I can only say that the USB-eLicenser will be here for some time to come. We are currently discussing a shorter version that would be introduced during next year if everything works as expected and we are also discussing a rather simple way for you to cover short term downtimes due to a USB-eLicenser failure or theft. No details are available yet but we’ll let you know!