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Unable to reactivate

Indra Raj Verma

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Indra Raj Verma

I am using nitro pro from last 4 years. Yesterday I have to reinstall it, after it i am unable to Activate it. It is showing error #22 in Nitro 12 and invalid key in Nitro Pro 13 and Not showing activation option in Nitro Pro 11.  I have checked my Serial key online is showing...

Please help me to reactivate it.


Version 12
Status Active
Number of Activations 0
Number of Activations Allowed 2
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  • Official Nitronaut

Hello @Indra Raj Verma

Thank you for your message!

Please note, we no longer support Nitro Pro 11. It has been discontinued as documented in our Sunset Policy: https://www.gonitro.com/nps/product-details/sunset-policy

You can either upgrade to Nitro Pro 13: https://www.gonitro.com/pro/upgrade

Or install the latest Nitro Pro 12 update so you can continue using your purchased license: 

Then activate with your Nitro Pro 11serial number.

I hope this helps. Let me know if you require anything else.

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Indra Raj Verma

Hello Sir, @Leslie V.

            I have Installed Nitro Pro Updated as link shared by you and it has activate also but now I am getting a error #401 Msg. please arrange to resolve it.


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I have a similar problem.

I have uninstalled the software using your cleanup link and reinstalled Ni

tro 12 using your download links. It does not accept my serial number.

How can I get Nitro back up and working?



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