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Activation server failed, cannot install nitro pro 11

Jason Joynson

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Jason Joynson


I have upgraded computers and deactivated the license and software on the old computer. Now I cannot get past the activation on the new one, it loads the trial version and says I must activate manually. When i proceed to do this, I copy the installation ID and click next, it says to go to www.nitropdf.com/activation and paste the installation id, then click next and copy the code from the website and my serial number, but when I click the link it redirects to www.internetactivation.com and that page doesn't load it says

Hmmm… can't reach this page

It looks like www.internetactivation.com closed the connection


I cannot proceed to activate this software, yet have 2 license install available, none are showing activated in the Activating Nitro Pro | Nitro (gonitro.com) portal.

How do install and register this product?

Thank you

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  • Allain Umailin changed the title to Activation server failed, cannot install nitro pro 11
  • Official Nitronaut
Allain Umailin

Hello @Jason Joynson,

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

Please note that we no longer support Nitro Pro 11 and its activation servers have been shut down which is why you are having issues activating.

We recommend upgrading to our latest version, Nitro PDF Pro 13, which comes with significant stability and security improvements, as well as many feature enhancements, in particular in conversion and OCR functions. To upgrade to Nitro PDF Pro 13 at a discounted rate, please visit our Upgrade page https://www.gonitro.com/pro/upgrade 

Alternatively, you can upgrade to the latest build of Nitro Pro 12. Per our Sunset Policy, https://www.gonitro.com/nps/product-details/sunset-policy , we have stopped making feature enhancements to version 12 once we released version 13.  

You can find the Nitro Pro installer on this page and activate it with your current Nitro Pro 11 serial number 234600-xxxxxx-187816:

If you are getting the 'Nitro Pro Wizard has failed' message using our .exe package, it is because it requires a stable Internet connection to download installation files so please use offline English MSI packages instead:

x32 http://install.nitropdf.com/professional_12169574/en/retail/nitro_pro12_ba_x86.msi 
x64 http://install.nitropdf.com/professional_12169574/en/retail/nitro_pro12_ba_x64.msi

To know if you have 32-bit or 64-bit, please refer to this article:

Thank you for choosing Nitro and I hope this helps.

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