Fatal License Error

Hi, three month ago ModelSim worked without any issues. Now I get a "Fatal License Error" message. Please see attachment.

My Modelsim license is still valid and LM_LICENSE_FILE is set correctly.

I am using Quartus II 64-Bit Version15.0.2 Build 153 07/15/2015 SJ Full version.

OS is Windows 7

ModelSim Version 10.3d

I tried to analyze issue using "lmutil Imdiag" but I don't really understand what i get. Please see attachment.

Any other ways to analyze the license issue?

Thanks for your help.