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I have purchased Nitro Pro 12 with the current version is ..... recently I have started receiving Error 401 ..... is there anyway to resolve this ?? it's too annoying .... I uninstalled/reinstalled the product but no help. 

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  • Official Nitronaut
Reymund Oyong


Thank you for reaching out to us through our Community Forums!

Please open your Nitro Pro 12 installation then close the 401 error message if it shows up. 
At the top right, logout then login again using your Nitro Sign account. 

After these steps, please observe if you still get the same error message.

Kind regards,

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