securechannelfailure error

Hi, new to duplicati.

I am trying to use for storage. I use the AuthID wizard to create the login and everything indicates success. When I click the test button I receive the error: Failed to connect: Error: SecureChannelFailure (The authentication or decryption has failed.) web interface shows the app access for duplicati. Not sure how to get past this problem to get my backup setup.

Running package on debian 9 and Duplicati -

Any help is appreciated.

Welcome to the forum @pcgear

This is possibly a TLS problem between mono and

What does mono --version say? If it says you might be on the latest from Debian but not high enough to do TLS 1.2. Before mono 4.8, TLS ended at TLS 1.0, leading to the following problem:

Ensure your apps are TLS 1.2 compliant by May 13th, 2019 - All TLS 1.0 traffic will be blocked

You can update mono here which is also mentioned as Duplicati Prerequisites and will be important soon.

There was an unfortunate bug in mono 6 that breaks OneDrive, but I think going to would be OK.

If your mono is something recent, e.g.a 5.x or 6.x, then maybe changing –allowed-ssl-versions is needed.

Hopefully some of these changes will fix it. Please let us know which of the changes you wind up applying.

Updating mono corrected the issue. Thank you for the help.

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