Dear Paessler team,
I just re-install my Windows due to HDD crash, to a new HDD. After I re-install PRTG Network Monitor, and tried activate, it said that "Current activation status of your software license : Activation grace period expired" and "Last message about activation : Activation: Check via activation1.paessler.com, result is "License too old" ".
What sould I do to activate my license?
Regards,
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