Solidworks Floating License

Hi,

I have a standalone solidworks license on a laptop. I have now got a new desktop PC that I have transfered the license to. However I still have the laptop for working off site, but I can no longer use solidworks on the laptop as it asks me to activate and says I have exceeded my activations. I thought it was possible to have a single license on two computers as long as only one was in use at any one time?

SolidworksGeneral