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I just updated the Ubuntu One client on my Windows 7 machine today. When I try to sign in, I receive the "authentication failed" error message, even though the same credentials work on the Ubuntu One website and my Ubuntu 11 machine at work. Any suggestions?

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There seems to be authentication bugs in the latest windows client for ubuntu one. Download earlier version from and install it.

It should work and check for the change-logs in the future releases and updates for this bug to be fixed.

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There was a problem validating the SSL certificate in some cases. Could you try the latest version (4.0.0) and see if that fixes it for you?

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