Machine fingerprint has changed since activation exception


#1

I have installed winform application on seven different computers. All work good, but only one PC intime start App have verify exception “Machine fingerprint has changed since activation” in LexActivator.IsTrialGenuine() called from override method OnLoad. And after start intime second verification LexActivator.IsTrialGenuine() return LA_OK. How to fix it?
PC configuration:

Processors Information
Name AMD Phenom II X4 955
Memory SPD
Manufacturer (ID) Kingston (7F980000000000000000)
Size 4096 MBytes
Max bandwidth PC3-10700 (667 MHz)
Manufacturer (ID) Kingston (7F980000000000000000)
Size 4096 MBytes
Max bandwidth PC3-10700 (667 MHz)
Manufacturer (ID) Kingston (7F980000000000000000)
Size 4096 MBytes
Max bandwidth PC3-10700 (667 MHz)
Manufacturer (ID) Kingston (7F980000000000000000)
Size 4096 MBytes
Max bandwidth PC3-10700 (667 MHz)
Monitoring
Mainboard Model GA-MA770T-UD3 (0x0000032E - 0x4CBC02B3)
Storage
Name OCZ-VERT EX3
Capacity 55.9 GB
Display Adapters
Name NVIDIA GeForce GTX 560 Ti
Board Manufacturer ASUSTeK Computer Inc.
Memory size 1024 MB
Monitor 0
Model SMB2340 (Samsung)
Software
Windows Version Microsoft Windows 7 (6.1) Professional 64-bit Service Pack 1 (Build 7601)

#2

Hi Vitaliy,

This issue is very strange. If LexActivator.IsTrialGenuine() throws machine fingerprint changed error it’s better to call LexActivator.ActivateTrial() function again.