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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for September 16th, 2010

Dropbox – Why cant I establish a secure connection? –

Posted by jpluimers on 2010/09/16

Dropbox can show you this message when it can’t update (and the icon in the system tray gets a red cross ):

can’t establish a secure connection

In my case, it was because I was using the Fiddler2 tool to debug some web-traphic.
Fiddler intercepts the WinInet API layer by putting itself as a proxy in it.
The great thing is that Fiddler2 can hook HTTPS traffic.

The not so cool thing is that I forgot that DropBox routes its’ HTTPS traphic through the WinInet API too :-)

Disabling Fiddler2 enabled DropBox to start connecting again and finally making a good connection .

As soon as DropBox has a good connection, you can restart Fiddler2 again to debug your internet traffic.


via: Dropbox – Why cant I establish a secure connection? –.

Posted in Development, Fiddler, Power User, Software Development, Web Development | Leave a Comment »

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