What kind of error are you getting? It could be that the hostname doesn't match what's in the file. When you registered your PAK, did you give the FQDN, computer.yourdoamin.com, or did you just give the hostname, computer. The licensing tool, can only handle the hostname and not the FQDN. You can open up the .lic file with wordpad and see what it is showing. If it is showing the FQDN, you would need to work with the Licensing team to get this corrected.
HTH,
Steve
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