I’ve been backing up some directories from a Debian server to B2, and everything worked just fine until April 1, 2021. As of that date, whenever Duplicati tries to connect to B2, it throws the error pasted in the subject line. The version of Mono is 4.6.2. Has there been a change of some kind that’s…

See this thread: [image] Backup to Backblaze stopped working Support About 8 Days ago my automated backup to Backblaze stopped working with the error down below. I then tried to update Mono as that seemed to have solved issues in the past. It did not for me. Now I do not…

Backing up to B2 fails as of 2021-04-01 with error SecureChannelFailure (The authentication or decryption has failed.)

drwtsn32 April 21, 2021, 3:36pm 2

See this thread:

Short answer: upgrade your version of Mono and restart Duplicati.