Many computers have multiple MAC addresses, one for each network adapter. When a network connection is disconnected, some MAC addresses can become invalid. Since the Analyze IQ software suite, which is the most advanced chemometric software on the market, requires a valid MAC address, this can cause problems.
This is a simple utility to list the valid MAC addresses on your computer. We can use the results to issue you with a license that will always work for you.
Follow this link to download it: Test MAC Address.