Johan Strydom Posted January 28, 2021 Report Share Posted January 28, 2021 I have a 401 error message on my Nitro Pro 12. When tying to update or upgrade, I get a message my serial number is not registered. Link to comment Share on other sites More sharing options...
Official Nitronaut Leslie V Posted January 28, 2021 Official Nitronaut Report Share Posted January 28, 2021 Hello Johan, Can you please try to sign in to Nitro through the 'Log In' option on the top right corner of Nitro Pro. Link to comment Share on other sites More sharing options...
Johan Strydom Posted January 29, 2021 Author Report Share Posted January 29, 2021 I am logged in Link to comment Share on other sites More sharing options...
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