[求助]为什么不能设立ＮＯｘ模型（急急急！！）

zhznhm

Could not check out fluent-nox:
System clock has been set back
Feature:       fluent-nox
License path:  C:\FLUENT.INC\license\license.dat;
FLEXlm error:  -88,309
For further information, refer to the FLEXlm End User Manual,
available at "www.globetrotter.com".

每次设立ＮＯｘ模型的时候都会出现错误，
问各位高手，怎么解决啊？