The remote server returned an error : UnAuthorized when trying to active JetBrains product in Visual Studio


I try to register your Resharper Ultimate in Visual studio but I get following error:

I already checked my Internet Options setting and tried to add to devenv.exe.config

<defaultProxy enabled="true" useDefaultCredentials="true">
    <proxy bypassonlocal="True" proxyaddress="http://myproxy:8000" />


Do you have any other suggestions?



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Hello Sven,

Please try adjusting proxy settings manually in ReSharper | Options | Environment | Web Proxy Settings | Untick "Use system proxy server settings ..." checkbox | Fill in open fields. 


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Hi Alexander,

I tried that but I still have the same error.

Changed the WebProxy settings, restarted Visual Studio 2015, entered account info.

This time I saw logging in for a few seconds. But after that the same error.


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Then please try an offline activation:

Please open in a browser, log in to it using JB account, hit "Download activation code for offline usage" link for R# license assigned to you and then:
• Open ReSharper | Help | License Information | Manage License Keys dialog | Paste the activation code to "License Key" field | Hit "Add" button.
• Open ReSharper | Help | License Information | Manage License Keys dialog | Hit "..." button next to "License Key" field | Point the file with activation code | Hit "Open" | Hit "Add" button.



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