Creo Simulate "Lost network license" while running non-linear analysis with contacts?

Hi,

Has anyone else found while running a Non-Linear analysis with contacts that Creo Parametric Simulate loses the network license?

The license server needs to be on a separate computer on the network..

With the license server installed on the workstation performing the analysis the error message goes away and the analysis appears to run up to 20 minutes faster.

Have any of you seen this message?

Thanks,

Don Anderson